The International Day for Biological Diversity (or World Biodiversity Day) takes place annually on May 22. It is a United Nations–sanctioned international day for the promotion of biodiversity issues. Created by the Second Committee of the UN General Assembly in 1993 until 2000, it was held on December 29 to celebrate the day the Convention on Biological Diversity went into effect.
Biodiversity, is a portmanteau of “biological diversity,” and generally refers to the variety and variability of life on Earth. According to the United Nations Environment Programme, biodiversity typically measures variation at the genetic, the species, and the ecosystem level. Terrestrial biodiversity tends to be greater near the equator, which seems to be the result of the warm climate and high primary productivity. Biodiversity is not distributed evenly on Earth, and is richest in the tropics. These tropical forest ecosystems cover less than 10 per cent of earth’s surface, and contain about 90 percent of the world’s species. Marine biodiversity tends to be highest along coasts in the Western Pacific, where sea surface temperature is highest and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time,but may slow in the future.
Rapid environmental changes typically cause mass extinctions. More than 99.9 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth’s current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. More recently, in May 2016, scientists reported that 1 trillion species are estimated to be on Earth currently with only one-thousandth of one percent described.The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037 and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon). In July 2016, scientists reported identifying a set of 355 genes from the Last Universal Common Ancestor (LUCA) of all organisms living on Earth.
The age of the Earth is about 4.54 billion years old. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old meta-sedimentary rocks discovered in Western Greenland. More recently, in 2015, “remains of biotic life” were found in 4.1 billion-year-old rocks in Western Australia. Many researchers postulate that, “If life arose relatively quickly on Earth .. then it could be common in the universe.”
Since life began on Earth, five major mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic eon (the last 540 million years) marked a rapid growth in biodiversity via the Cambrian explosion—a period during which the majority of multicellular phyla first appeared. The next 400 million years included repeated, massive biodiversity losses classified as mass extinction events. In the Carboniferous, rainforest collapse led to a great loss of plant and animal life. The Permian–Triassic extinction event, 251 million years ago, was the worst; vertebrate recovery took 30 million years. The most recent, the Cretaceous–Paleogene extinction event, occurred 65 million years ago and has often attracted more attention than others because it resulted in the extinction of the dinosaurs.
The period since the emergence of humans has displayed an ongoing biodiversity reduction and an accompanying loss of genetic diversity. Named the Holocene extinction, the reduction is caused primarily by human impacts, particularly habitat destruction. Conversely, biodiversity impacts human health in a number of ways, both positively and negatively. The United Nations designated 2011–2020 as the United Nations Decade on Biodiversity.
The date of International Biodiversity Dat was shifted to commemorate the adoption of the Convention on May 22, 1992 at the Rio Earth Summit, partly to avoid the many other holidays that occur in late December. Areas of Biodiversity promoted so far include Water and Biodiversity, Marine Biodiversity, Forest Biodiversity, Development and Poverty Alleviation, Invasive Alien Species, Biodiversity and Agriculture, Biodiversity and Climate Change, ways to protect Biodiversity in Drylands, Biodiversity: Life Insurance for our Changing World, how Biodiversity affects Food, Water and Health for All, how biodiversity can help with poverty alleviation sustainable development and forest biodiversity
More International and National events happening on May 22
World Bee Day is celebrated annually on May 20. The purpose of the international day is to acknowledge the crucial role of bees and other pollinators for our ecosytem. Bees are closely related to wasps and ants, and are known for their role in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey and beeswax. Bees are a monophyletic lineage within the superfamily Apoidea and are presently considered a clade, called Anthophila. There are over 16,000 known species of bees in seven recognized biological families. They are found on every continent except Antarctica, in every habitat on the planet that contains insect-pollinated flowering plants.
Some species including honey bees, bumblebees, and stingless bees live socially in colonies. Bees are adapted for feeding on nectar and pollen, the former primarily as an energy source and the latter primarily for protein and other nutrients. Most pollen is used as food for larvae. Bee pollination is important both ecologically and commercially. The decline in wild bees has increased the value of pollination by commercially managed hives of honey bees.Bees range in size from tiny stingless bee species whose workers are less than 2 millimetres (0.08 in) long, to Megachile pluto, the largest species of leafcutter bee, whose females can attain a length of 39 millimetres (1.54 in). The most common bees in the Northern Hemisphere are the Halictidae, or sweat bees, but they are small and often mistaken for wasps or flies. Vertebrate predators of bees include birds such as bee-eaters; insect predators include beewolves and dragonflies.
Human beekeeping or apiculture has been practised for millennia, since at least the times of Ancient Egypt and Ancient Greece. Apart from honey and pollination, honey bees produce beeswax, royal jelly and propolis. Bees have appeared in mythology and folklore, through all phases of art and literature, from ancient times to the present day, though primarily focused in the Northern Hemisphere, where beekeeping is far more common. Sadly an analysis of 353 wild bee and hoverfly species across Britain from 1980 to 2013 found the insects have been lost from a quarter of the places they were found in 1980.
World Bee Day takes place on the anniversary of the birth of Carniolan apiarist and painter Anton Janša, the pioneer of beekeeping, who was baptized 20 May 1734 in Breznica, Carniola (now in Slovenia) Although His exact birth date is not known. From a young age Janša, together with his two brothers, showed a great interest in painting (they had a studio in their barn) and all three brothers, despite being illiterate, went to Vienna and entered the painters’ academy there. His brother Lovro actually finished his studies at the academy and became a professor there, but Anton, despite a talent for painting, soon discovered that his true interests were in bee-keeping.
His interest in bee keeping came from his father who had over one hundred hives at home and neighbouring farmers would gather at the village and discuss farming and bee-keeping. In 1769 he began to work full-time as a bee-keeper and a year later became the first royally appointed teacher of apiculture for all Austrian lands and was employed as a teacher of apiculture at the Habsburg court in Vienna WhereHe kept bees in the imperial gardens (Augarten) and travelled around Austria presenting his observations in regard to moving hives to various pastures.
He became famous for his lectures in which he demonstrated his knowledge of bees. He also wrote two books in German: Discussion on Bee-keeping (1771) after his death. In his Full guide he noted: Bees are a type of fly, hardworking, created by God to provide man with all needed honey and wax. Amongst all God’s beings there are none so hard working and useful to man with so little attention needed for its keep as the bee. He is also noted for changing the size and shape of hives to a form where they can be stacked together like blocks. As a painter he also decorated the fronts of hives with paintings. Janša rejected the belief that the male bees are water carriers and assumed that the queen-bee is fertilized mid-air. He advocated moving hives to pastures. He sadly died in Vienna 13 September 1773 and following his death The Empress Maria Theresa issued a decree obliging all teachers of apiculture to use his books. His second book A Full guide to Bee-keeping was published posthumously in 1775. The UN Member States approved Slovenia’s proposal to proclaim 20 May as World Bee Day in December 2017.
English wildlife enthusaist Sir David Attenborugh OM, CH, CVO, CBE, FRS, FZS, FSA was born 8th May in 1926. He is a younger brother of the late director, producer and actor Richard Attenborough and His career as the face and voice of natural history programmes has endured for more than 50 years. He is best known for writing and presenting the Life series, in conjunction with the BBC Natural History Unit, which collectively form a comprehensive survey of all life on the planet. Attenborough grew up in College House on the campus of the University College, Leicester, where he spent his childhood collecting fossils, stones and other natural specimens. He received encouragement in this pursuit at age seven, and one of his adoptive sisters also gave him a piece of amber filled with prehistoric insects. He was educated at Wyggeston Grammar School for Boys in Leicester and then won a scholarship to Clare College, Cambridge in 1945, where he studied geology and zoology and obtained a degree in natural sciences.
In 1950, he applied for a job as a radio talks producer with the BBC and attracted the interest of the head of the Factual broadcasting department of the BBC and joined the BBC full-time. Attenborough’s association with natural history programmes began when he produced and presented the three-part series The Pattern of Animals, which discussed the use of camouflage, aposematism and courtship displays among animals. Through this programme.Attenborough met the curator of the zoo’s reptile house, and they decided to make a series about an animal-collecting expedition. The result was Zoo Quest, first broadcast in 1954, which Attenborough presented. In 1957, the BBC Natural History Unit was established and Attenborough formed the Travel and Exploration Unit, allowing him to continue to front Zoo Quest as well as produce other documentaries, notably the Travellers’ Tales. Attenborough also began studying for a post-graduate degree in social anthropology at the London School of Economics, however he returned to the BBC as controller of BBC Two before he could finish the degree and became the controller of BBC Two in March 1965 but was allowed to continue sudying as well as making programmes on an occasional basis. Later the same year, he filmed elephants in Tanzania, and in 1969, he made a series on the cultural history of the Indonesian island of Bali. For the 1971 film A Blank on the Map, he joined the first Western expedition to a remote highland valley in New Guinea to seek out a lost tribe.
As controller of BBC2 Attenborough established a portfolio of diverse and different programmes which defined the channel’s identity including music, arts, entertainment, archaeology, experimental comedy, travel, drama, sport, business, science and natural history programmes such as Man Alive, Call My Bluff, Chronicle, Life, One Pair of Eyes, The Old Grey Whistle Test, Monty Python’s Flying Circus and The Money Programme. He also ordered a 13-part series on the history of Western art, which was Broadcast in 1969 and set the blueprint for landmark documentaries. Others followed, including The Ascent of Man and Alistair Cooke’s America. Attenborough thought that the story of evolution would be a natural subject for such a series. He shared his idea with a producer at the Natural History Unit, who came up with the title Life on Earth and returned to Bristol to start planning the series.Early the following year, he returned to full-time programme-making, leaving him free to write and present the planned natural history epic. Attenborough became a freelance broadcaster and immediately started work on his next project, which resulted in the 1973 series Eastwards with Attenborough, which was similar to Zoo Quests . On his return, he began to work on Life on Earth. Due to the scale of his ambition, the BBC decided to partner with an American network meanwhile he worked on a number of other television projects including a series on tribal art (The Tribal Eye) and another on the voyages of discovery (The Explorers).
Life on Earth began production in 1976 And Attenborough set about creating a body of work which set the benchmark for wildlife film-making and influence a generation of documentary film-makers. By treating his subject seriously and researching the latest discoveries, Attenborough and his production team gained the trust of the scientific community, who responded by allowing him to feature their subjects in his programmes. In Rwanda, Attenborough and his crew were granted privileged access to film Dian Fossey’s research group of mountain gorillas. new film-making techniques were devised to get hitherto unfilmable events and animals. Attenborough also managed to visit several locations around the globe in each episode, sometimes even changing continents mid-sentence. Although appearing as the on-screen presenter, he consciously restricted his pieces to camera to give his subjects top billing. The success of Life on Earth prompted the BBC to consider a follow-up, and five years later, The Living Planet was screened dealing with the theme of ecology, how living things adapt to their environment. It was another critical and commercial success, generating huge international sales for the BBC.In 1990, The Trials of Life completed the original Life trilogy, looking at animal behaviour through the different stages of life.
In 1993, he continued with Life in the Freezer, which surveyed the natural history of Antarctica, and then embarked on a number of more specialised surveys of the natural world, beginning with plants. The result, The Private Life of Plants , showed plants as dynamic organisms by using time-lapse photography to speed up their growth. Attenborough then made The Life of Birds dealing with Avian matters. Technological developments in camera technology played a big part in subsequent program’s and for the next series Life of Mammals, low-light and infrared cameras were deployed to reveal the behaviour of nocturnal mammals. Advances in macro photography also made it possible to capture natural behaviour of very small creatures for the first time, and in 2005, Life in the Undergrowth dealt with the hitherto hidden world of invertebrates.The Next series Attenborough made was Life in Cold Blood which dealt with Reptiles and Amphibians.
The Life program’s were assembled In a DVD encyclopaedia called Life on Land. Then in 2010 Attenborough made First Life — dealing with evolutionary history before Life on Earth. He has continued to work on other documentaries, and his voice is synonymous with many other wildlife documentaries including The First Eden, Lost Worlds Vanished Lives, Wildlife on One, BBC Wildlife Specials, The Blue Planet, Nature’s Great Events, Life, Frozen Planet, Wildlife on One and the Natural World. n 1997, he narrated the BBC Wildlife Specials, each focussing on a charismatic species, and screened to mark the Natural History Unit’s 40th anniversary, and continued to collaborate with the BBC Natural History Unit in the new millennium. Attenborough then narrated The Blue Planet (2001), which dealt with marine life, And Planet Earth (2006), the biggest nature documentary ever made for television. In 2011, he narrated Frozen Planet featuring the Natural History of the Polar Regions.In 2009, he co-wrote and narrated Life, a ten-part series focussing on extraordinary animal behaviour, and narrated Nature’s Great Events, which showed how seasonal changes trigger major natural spectacles.
Recently Attenborough’s documentaries have became more overtly environmentalist. In State of the Planet, he assesses the impact man’s activities have had on the natural world by using scientific evidence and interviews with leading scientists and conservationists. He has also addressed global warming (The Truth about Climate Change) and human population growth (How Many People Can Live on Planet Earth?) and Highlighted the plight of endangered species in BBC’s Saving Planet Earth project in 2007, the 50th anniversary of the Natural History Unit. Attenborough is also working on documentaries for Sky’s new 3D network, Sky 3D. Their first collaboration was Flying Monsters 3D, a film about pterosaurs a second film, The Bachelor King, followed a year later, and further collaborations are planned including a series on plants, and following that, a series on the wildlife of the Galapagos Islands. and a second series of First Life, which explored the origins of life on Earth.
In 2012 Attenborough celebrated 50 years in broadcasting and during this long and distinguished career he has been given many honorary degrees by British universities. In 1980, he was honoured by the Open University. He also has honorary Doctor of Science awards from the University of Cambridge, the University of Oxford and the University of Bath. In 2006, he received the title of Distinguished Honorary Fellows of the University of Leicester, “in recognition of a record of continuing distinguished service to the University.” David Attenborough was also awarded an honorary Doctor of Letters degree by the university in 1970, and was made an honorary Freeman of the City of Leicester in 1990. He has also received the title Honorary Fellow from Clare College, Cambridge, the Zoological Society of London, the Linnean Society, the Institute of Biology and the Society of Antiquaries, snd was named as the most trusted celebrity in Britain in a 2006 Reader’s Digest poll. The following year he won The Culture Show’s Living Icon Award and was also named among the 100 Greatest Britons in a 2002 BBC poll and is one of the top ten “Heroes of Our Time” according to New Statesman magazine.
He also has the distinction of having a number of newly-discovered species and fossils being named in his honour. In 1993, a fossilised Mesozoic armoured fish discovered in Western Australia was given the name Materpiscis attenboroughi, which is also believed to be the earliest organism capable of internal fertilisation. He has also lent his name to a species of Ecuadorian flowering tree, Blakea attenboroughi, one of the world’s largest-pitchered carnivorous plants, Nepenthes attenboroughii, and one of only four species of long-beaked echidna, the critically endangered Zaglossus attenboroughi, discovered by explorer and zoologist Tim Flannery in the Cyclops Mountains of New Guinea in 1998, and In September 2009, London’s Natural History Museum opened the Attenborough Studio, part of its Darwin Centre development. An arctic research vessel has also recently been named Sir David Attenborough. Attenborough’s contribution to broadcasting and wildlife film-making has brought him international recognition. He has been called “the great communicator, the peerless educator” and “the greatest broadcaster of our time”. His programmes are often cited as an example of what public service broadcasting should be, and have influenced a generation of wildlife film-makers.
International Sunflower Guerrilla Gardening Day takes place annually on 1 May. It was launched on 1 May 2007 by the guerrilla gardening group The Brussels Farmers, which they declared in the Journée Internationale de la Guérilla Tournesol.
Guerrilla gardening is a growing movement to turn neglected or misused land into something useful, like a vegetable patch, or more attractive, by planting trees, or in this case, flowers. International Sunflower Guerrilla Gardening Day has since been taken up by guerrilla gardeners in other countries. In the Southern Hemisphere, other plants more suited to its approaching winter months substitute for sunflowers
SILVER STAR SERVICE DAY
Silver Star Service Day takes place on 1 May. The event was created in 1 May 1918 and The purpose of Silver Star Service day is to honour the sacrifices made by the combat wounded, ill and dying service members. It was first suggested by the Women’s Committee of the Council of National Defenses. In 2010, the U.S. House of Representatives passed H Res. 855 officially recognizing May 1 as Silver Star Service Day.
GLOBAL LOVE DAY
Global Love Day takes place annually on 1 May. It was launched on 1 May 2004 by The Love Foundation to celebrate and nurture the love we have within, which heal and transform us. The Love Foundation Inc. is a nonprofit organization with the mission of inspiring people to love unconditionally and was the vision of Harold Becker. The purpose of the Love Foundation is to assist people by building a practical foundation and understanding of unconditional love within individuals and society as a whole. The Love Foundation was Established in 2000 and has since become an international leading resource for sharing the awareness of unconditional love. The Love Foundation is designed to be an open organization built on the universal recognition of unconditional love and is not affiliated with any religious creed or perspective. The focus of the Love Foundation is on the personal appreciation and pragmatic experience of unconditional love and their aim is to share this timeless understanding Through education, research, and charity, and expand individual and collective consciousness.
French American Ornithologist, Naturalist, Hunter and painter John James Audubon (Jean-Jacques Audubon was Born in Les Cayes in the French colony of Saint-Domingue (now Haiti) he is famous for having painted, catalogued, and described the birds of North America in a manner far superior to any before him. From his earliest days, Audubon had an affinity for birds and His father encouraged this interest in nature. Once in America Audubon went to a boarding house run by Quaker women. They taught him English, and He traveled with the family’s Quaker lawyer to
the Audubon family farm in what he considered a paradise. “Hunting, fishing, drawing, and music occupied my every moment, Studying his surroundings, Audubon quickly learned the ornithologist’s rule, which he wrote, “The nature of the place—whether high or low, moist or dry, whether sloping north or south, or bearing tall trees or low shrubs—generally gives hint as to its inhabitants.”His father hoped that the lead mines on the property could be commercially developed, as lead was an essential component of bullets. This could provide his son with a profitable occupation. Audubon met his neighbor William Bakewell, the owner of the nearby estate, whose daughter Lucy he married five years later. The two young people shared many common interests, and early on began to spend time together, exploring the natural world around them.
Audubon then set about studying American birds with the goal of illustrating his findings in a more realistic manner than most artists did then. He began conducting the first known bird-banding on the continent: he tied yarn to the legs of Eastern Phoebes and determined that they returned to the same nesting spots year after year. He also began drawing and painting birds, and recording their behaviour Audubon continued his bird studies and created his own nature museum, perhaps inspired by Charles Willson Peale, whose bird exhibits were considered scientifically advanced. Audubon’s room was brimming with birds’ eggs, stuffed raccoons and opossums, fish, snakes, and other creatures. He had become proficient at specimen preparation and taxidermy.With his father’s approval, Audubon sold part of his farm, including the house and mine, as they deemed the mining venture too risky. He retained some land for investment, then went to New York to learn the import-export trade, hoping to find a business to support his marriage to Lucy.
On October 12, 1820, Audubon went to Mississippi, Alabama, and Florida in search of ornithological specimens with George Lehman, a professional Swiss landscape artist. The following summer, he moved to the Oakley Plantation in the Felicianas, where he taught drawing. After a short stay in Cincinnati to work as a naturalist and taxidermist at a museum, Audubon traveled south on the Mississippi. By this time He was committed to find and paint all the birds of North America for eventual publication. His goal was to surpass the earlier ornithological work of poet-naturalist Alexander Wilson, whose work he used to guide him .Audubon called his future work “Birds of America”. He attempted to paint one page each day. Painting with newly discovered technique, He hired hunters to gather specimens for him. Audubon realized the ambitious project would take him away from his family for months at a time.
in 1824 Audubon returned to Philadelphia to seek a publisher for his bird drawings. He was rebuffed by many publishers, until he met Thomas Sully, one of the most famous portrait painters of the time and had earned the enmity of some of the city’s leading scientists at the Academy of Natural Sciences. He took oil painting lessons from Sully and met Charles Bonaparte, who admired his work and recommended he go to Europe to have his bird drawings engraved. So in 1826 Audubon took his growing collection of work to England, taking a portfolio of over 300 drawings. With letters of introduction to prominent Englishmen, Audubon gained their quick attention.
The British could not get enough of his images of backwoods America and its natural attractions. He met with great acceptance as he toured around England and Scotland, and was lionized as “the American woodsman.” He raised enough money to begin publishing his Birds of America. This monumental work consists of 435 hand-colored, life-size prints of 497 bird species, made from engraved copper plates of various sizes depending on the size of the image. They were printed on sheets measuring about 39 by 26 inches (660 mm). The work contains just over 700 North American bird species. The pages were organized for artistic effect and contrasting interest, as if the reader were taking a visual tour. The first and perhaps most famous plate was the Wild Turkey, which had been Benjamin Franklin’s candidate for the national bird. It lost to the Bald Eagle. Audubon also sold oil-painted copies of the drawings to make extra money and publicize the book.
Audubon soon had many fans including King George IV was also a subscriber to his book. London’s Royal Society recognized his achievement by electing Audubon a fellow. He followed Benjamin Franklin, who was the first American fellow. While in Edinburgh to seek subscriptions for the book, Audubon gave a demonstration of his method of propping up birds with wire at professor Robert Jameson’s Wernerian Natural History Association. Student Charles Darwin was in the audience. Audubon also visited the dissecting theatre of the anatomist Robert Knox. Audubon was a hit in France as well, gaining the King and several of the nobility as subscribers. Audubon returned to America in 1829 to complete more drawings for his magnum opus. He also hunted animals and shipped the valued skins to British friends. He was reunited with his family. After settling business affairs, Lucy accompanied him back to England.
He followed Birds of America with a sequel Ornithological Biographies. This was a collection of life histories of each species written with Scottish ornithologist William MacGillivray. The two books were printed separately to avoid a British law requiring copies of all publications with text to be deposited in Crown libraries, a huge financial burden for the self-published Audubon. Both books were published between 1827 and 1839. During the 1830s, Audubon continued making expeditions in North America. During a trip to Key West, a companion wrote in a newspaper article, “Mr. Audubon is the most enthusiastic and indefatigable man I ever knew…Mr. Audubon was neither dispirited by heat, fatigue, or bad luck”. he would draw during the day before returning to the field in the evening, a routine he kept up for weeks and months. In 1833, Audubon set forth from Maine accompanied by his son John, and five other young colleagues to explore the ornithology of Labrador. On the return voyage, the Ripley made a stop at St.George’s, Newfoundland and Audubon and his assistants documented 36 species of birds.
In 1839 having finished the Ornithological Biography, Audubon returned to the United States with his family. He bought an estate on the Hudson River (now Audubon Park). In 1842, he published an octavo edition of Birds of America, with 65 additional plates. It earned $36,000 and was purchased by 1100 subscribers. Audubon spent much time on “subscription gathering trips”, drumming up sales of the octavo edition, as he hoped to leave his family a sizable income. Audubon made some excursions out West where he hoped to record Western species he had missed, but his health began to fail,
Sadly in 1848, he manifested signs of senility, his “noble mind in ruins.” And He died at his family home on January 27, 1851. Audubon is buried, close to the location of his home, in the graveyard at the Church of the Intercession in the Trinity Church Cemetery and Mausoleum at 155th Street and Broadway in Manhattan. There is an imposing monument in his honor at the cemetery, which is the center of the Heritage Rose District of NYC.
Audubon’s final work was on mammals, the Viviparous Quadrupeds of North America, prepared in collaboration with his good friend Rev. John Bachman of Charleston, South Carolina. Bachman supplied much of the scientific text. The work was completed by Audubon’s sons and son-in-law and published posthumously. His son John did most of the drawings. Audubon’s influence on ornithology and natural history was far reaching. Nearly all later ornithological works were inspired by his artistry and high standards. Charles Darwin quoted Audubon three times in On the Origin of Species and also in later works. Audubon’s field notes were a significant contribution to the understanding of bird anatomy and behavior. Birds of America is still considered one of the greatest examples of book art. Audubon discovered 25 new species and 12 new subspecies. He was elected to the Royal Society of Edinburgh, the Linnaean Society, and the Royal Society in recognition of his extraordinary contributions to Natural history.
World Penguin Day takes place on 25 April during the annual northern migration of Adelie penguins, a species of penguin that is native to Antarctica. The Adelie penguins individually migrate north to have better access to food during the winter months and then during the summer, return to the coastal beaches on Antarctica to build their nests. The holiday was created at McMurdo Station, an American research center on Ross Island. Researchers noticed that the Adelie penguins began this migration specifically on this day, and they created this holiday as a way to pass the time and give social awareness to these creatures.
Penguins are a group of aquatic flightless birds belonging to the order Sphenisciformes, family Spheniscidae. They live almost exclusively in the Southern Hemisphere, with only one species, the Galapagos penguin, found north of the equator. Highly adapted for life in the water, penguins have countershaded dark and white plumage, and their wings have evolved into flippers. Most penguins feed on krill, fish, squid and other forms of sea life which they catch while swimming underwater. They spend roughly half of their lives on land and the other half in the sea. Almost all penguin species are native to the Southern Hemisphere, however they are not found only in cold climates, such as Antarctica. In fact, only a few species of penguin live so far south. Several species are found in the temperate zone, and one species, the Galápagos penguin, lives near the equator.
The evolutionary history of penguins is well-researched and represents a showcase of evolutionary biogeography. Although penguin bones of any one species vary much in size and few good specimens are known, the alpha taxonomy of many prehistoric forms still leaves much to be desired. Some seminal articles about penguin prehistory have been published since 2005; the evolution of the living genera can be considered resolved by now.
The basal penguins lived around the time of the Cretaceous–Paleogene extinction event somewhere in the general area of (southern) New Zealand and Byrd Land, Antarctica. Due to plate tectonics, these areas were at that time less than 1,500 kilometres (930 mi) apart rather than the 4,000 kilometres (2,500 mi) of today. The most recent common ancestor of penguins and their sister clade can be roughly dated to the Campanian–Maastrichtian boundary, around 70–68 mya and It is thought that the Penguin Ancestors were not yet entirely flightless during the Cretaceous Era.
The oldest known fossil penguin species is Waimanu manneringi, which lived in the early Paleocene epoch of New Zealand, or about 62 mya. While they were not as well-adapted to aquatic life as modern penguins, Waimanu were generally diver/loon-like birds but already flightless, with short wings adapted for deep diving. They swam on the surface using mainly their feet, but the wings were – as opposed to most other diving birds (both living and extinct) – already adapting to underwater locomotion. Perudyptes from northern Peru was dated to 42 mya. An unnamed fossil from Argentina proves that, by the Bartonian (Middle Eocene), some 39–38 mya, primitive penguins had spread to South America and were expanding into Atlantic waters. During the Late Eocene and the Early Oligocene (40–30 million years ago, some lineages of gigantic penguins existed. Nordenskjoeld’s giant penguin was the tallest, growing nearly 1.80 meters (5.9 feet) tall. The New Zealand giant penguin was probably the heaviest, weighing 80 kg or more. Both were found on New Zealand, the former also in the Antarctic farther eastwards.
Traditionally, most extinct species of penguins, giant or small, had been placed in the paraphyletic subfamily called Palaeeudyptinae. However there were at least two major extinct lineages. One or two closely related ones occurred in Patagonia, and at least one other—which is or includes the paleeudyptines as recognized today – occurred on most Antarctic and Subantarctic coasts. on Seymour Island, Antarctica, for example, around 10 known species of penguins ranging in size from medium to huge apparently coexisted some 35 mya during the Priabonian (Late Eocene).The oldest well-described giant penguin, the 5-foot (1.5 m)-tall Icadyptes salasi, actually occurred as far north as northern Peru about 36 mya. However The gigantic penguins became extinct by the end of the Paleogene, around 25 mya. Their decline and disappearance coincided with the spread of the Squalodontoidea and other primitive, fish-eating toothed whales, Although A new lineage, the Paraptenodytes, which includes smaller but decidedly stout-legged forms, had already arisen in southernmost South America. During the early Neogene saw another morphotype emerge the similarly sized Palaeospheniscinae.
International Mother Earth Day is an annual event, celebrated on April 22, to increase awareness and appreciation of the Earth’s natural environment.It was first celebrated in 1970, and is now coordinated globally by the Earth Day Network, and celebrated in more than 192 countries each year. The name and concept of Earth Day was allegedly pioneered by John McConnell in 1969 at a UNESCO Conference in San Francisco. Earth Day was first observed in San Francisco and other cities on March 21, 1970, the first day of spring in the northern hemisphere. To mark the occasion many events are held worldwide. Earth Day is now coordinated globally by the Earth Day Network, and is celebrated in more than 175 countries every year. In 2009, the United Nations designated April 22 International Mother Earth Day.
The day was later sanctioned in a Proclamation signed by Secretary General U Thant at the United Nations where it is observed each year. About the same time a separate Earth Day was founded by United States Senator Gaylord Nelson as an environmental teach-in first held on April 22, 1970. While this April 22 Earth Day was focused on the United States, an organization launched by Denis Hayes, who was the original national coordinator in 1970, took it international in 1990 and organized events in 141 nations. Numerous communities celebrate Earth Week, an entire week of activities focused on environmental issues
In 1969 at a UNESCO Conference in San Francisco, peace activist John McConnell proposed a day to honor the Earth and the concept of peace, to first be celebrated on March 21, 1970, the first day of spring in the northern hemisphere. This day of nature’s equipoise was later sanctioned in a Proclamation written by McConnell and signed by Secretary General U Thant at the United Nations. A month later a separate Earth Day was founded by United States Senator Gaylord Nelson as an environmental teach-in first held on April 22, 1970. Nelson was later awarded the Presidential Medal of Freedom Award in recognition of his work. While this April 22 Earth Day was focused on the United States, an organization launched by Denis Hayes, who was the original national coordinator in 1970, took it international in 1990 and organized events in 141 nations. Numerous communities celebrate Earth Week, an entire week of activities focused on environmental issues
The first Earth Day family had participants and celebrants in two thousand colleges and universities, roughly ten thousand primary and secondary schools, and hundreds of communities across the United States. More importantly, it “brought 20 million Americans out into the spring sunshine for peaceful demonstrations in favor of environmental reform.” It now is observed in 192 countries, and coordinated by the nonprofit Earth Day Network, chaired by the first Earth Day 1970 organizer Denis Hayes, according to whom Earth Day is now “the largest secular holiday in the world, celebrated by more than a billion people every year.” Environmental groups have sought to make Earth Day into a day of action which changes human behavior and provokes policy changes.
NASA’s Earth Day Global Selfie
Chemists Celebrate Earth Day
Girl Scout Leaders Day
Jelly Bean Day
‘In God We Trust’ Day
‘In God We Trust Day’ commemorates the date of 22 April 1864 when the U.S. Congress passed the Coinage Act of 1864 that mandates inscription ‘In God We Trust’ is on all coins minted as U.S. currency
NASA’s Earth Day Global Selfie commemorates the date of 22 April 2014 when NASA asks on social media “Where are you on Earth right now?” and requests they download a special sign in the language of their choice, fill their location, and take a selfie to send to NASA to become part of a mosaic picture made to look like Earth from space