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Calabar Angwantibo
The Calabar angwantibo (''Arctocebus calabarensis''), also known as the Calabar potto, is a strepsirrhine primate of the family Lorisidae. It shares the genus ''Arctocebus'' with the golden angwantibo (''Arctocebus aureus''). It is closely related to the potto (''Perodicticus potto'') and to the various lorises. The Calabar angwantibo lives in the rainforests of west Africa, particularly in tree-fall zones. In areas where the forest has been cleared, it has been known to live on farmland. Its range covers Cameroon, Nigeria and Equatorial Guinea. The species takes its name from the Nigerian city of Calabar. The Calabar angwantibo weighs between 266 and 465 grams. It has orangish-yellow fur on its back, grey or white fur on its belly, and a distinctive white line on its forehead and nose. Like other lorids, this angwantibo has a very short index finger, which allows it to get a strong grip on tree branches. The second toe on each foot has a specialised claw that the angwantibo us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Alexander Smith (biologist)
John Alexander Smith (21 April 1863 – 19 December 1939) was a British idealist philosopher, who was the Jowett Lecturer of philosophy at Balliol College, Oxford from 1896 to 1910, and Waynflete Professor of Moral and Metaphysical Philosophy, carrying a Fellowship at Magdalen College in the same university, from 1910 to 1936. He was born in Dingwall and died in Oxford. Life and work Smith was educated at Inverness Academy, the Edinburgh Collegiate School, Edinburgh University (where he was Ferguson classical scholar in 1884), and at Balliol College, Oxford, to which he was admitted as Warner exhibitioner and honorary scholar in Hilary term 1884. His most visible accomplishments were his work with William David Ross on a 12-volume translation of Aristotle, and his Gifford Lectures for 1929–1931 on the ''Heritage of Idealism'', which were never published. The 'Moral' tag in his Professorial title disappeared with R. G. Collingwood's appointment in 1936. Smith expressed some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arboreal
Arboreal locomotion is the Animal locomotion, locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some animals may scale trees only occasionally, but others are exclusively arboreal. The habitats pose numerous mechanical challenges to animals moving through them and lead to a variety of anatomical, behavioral and ecological consequences as well as variations throughout different species.Cartmill, M. (1985). Climbing. In ''Functional Vertebrate Morphology'', eds. M. Hildebrand D. M. Bramble K. F. Liem and D. B. Wake, pp. 73–88. Cambridge: Belknap Press. Furthermore, many of these same principles may be applied to climbing without trees, such as on rock piles or mountains. Some animals are exclusively arboreal in habitat, such as the tree snail. Biomechanics Arboreal habitats pose numerous mechanical challenges to animals moving in them, which have been solved in diverse ways. These challenges include moving on n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Of West Africa
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla ( cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together with Saurop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Of Cameroon
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla (cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together with Sauropsida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lorises
Loris is the common name for the strepsirrhine mammals of the subfamily Lorinae (sometimes spelled Lorisinae) in the family Lorisidae. ''Loris'' is one genus in this subfamily and includes the slender lorises, ''Nycticebus'' is the genus containing the slow lorises, and ''Xanthonycticebus'' is the genus name of the pygmy slow loris. Description Lorises are nocturnal and arboreal. They are found in tropical and woodland forests of India, Sri Lanka, and parts of southeast Asia. Loris locomotion is a slow and cautious climbing form of quadrupedalism. Some lorises are almost entirely insectivorous, while others also include fruits, gums, leaves, and slugs in their diet. Female lorises practice infant parking, leaving their infants behind in trees or bushes. Before they do this, they bathe their young with allergenic saliva that is acquired by licking patches on the insides of their elbows, which produce a mild toxin that discourages most predators, though orangutans occasionally ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California Press
The University of California Press, otherwise known as UC Press, is a publishing house associated with the University of California that engages in academic publishing. It was founded in 1893 to publish scholarly and scientific works by faculty of the University of California, established 25 years earlier in 1868, and has been officially headquartered at the university's flagship campus in Berkeley, California, since its inception. As the non-profit publishing arm of the University of California system, the UC Press is fully subsidized by the university and the State of California. A third of its authors are faculty members of the university. The press publishes over 250 new books and almost four dozen multi-issue journals annually, in the humanities, social sciences, and natural sciences, and maintains approximately 4,000 book titles in print. It is also the digital publisher of Collabra and Luminos open access (OA) initiatives. The University of California Press publishes in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Despard Estes
Richard Despard Estes (December 26, 1927 - December 6, 2021) was a biologist specialising in the behaviour of mammals in mainland Africa. He was particularly interested in studying wildebeest. This interest led Rod East, the former co-chair of the Antelope Specialist Group of the IUCN-World Conservation Union, to dub him the 'Guru of Gnu.' It has been suggested that Estes is responsible for most of the world's knowledge of wildebeest behaviour. Estes chose to study wildebeest because he thought they were 'the most interesting' animals he knew, particularly in their rutting behaviour. He obtained his doctorate in the early 1960s with a thesis on the wildebeest of the Ngorongoro Crater, in which he advanced the theory that the females' estrus was triggered by the rumbling 'love call' of the males. Estes has spent most of the ensuing 40 years doing field work in Africa. In 2004 he began a project in cooperation with the Smithsonian Institution to test his early theory using new advan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Overloaded Ark
''The Overloaded Ark'', first published in 1953, is the debut book by British naturalist Gerald Durrell. It is the chronicle of a six-month collecting trip, from December 1947 to August 1948, to the West African colony of British Cameroonnow Cameroonthat Durrell made with aviculturist and ornithologist John Yealland. Their reasons for going on the trip were twofold: "to collect and bring back alive some of the fascinating animals, birds, and reptiles that inhabit the region", and secondly, for both men to realise a long cherished dream to see Africa. Its combination of comic exaggeration and environmental accuracy, portrayed in Durrell's light, clever prose, made it a great success. It launched Durrell's career as a writer of both non-fiction and fiction, which in turn financed his work as a zookeeper and conservationist. '' The Bafut Beagles'' and ''A Zoo in My Luggage'' are sequels of sorts, telling of his later returns to the region. History Durrell had married Jacqueline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerald Durrell
Gerald Malcolm Durrell, (7 January 1925 – 30 January 1995) was a British naturalist, writer, zookeeper, conservationist, and television presenter. He founded the Durrell Wildlife Conservation Trust and the Jersey Zoo on the Channel Island of Jersey in 1959. He wrote approximately forty books, mainly about his life as an animal collector and enthusiast, the most famous being ''My Family and Other Animals'' (1956). Those memoirs of his family's years living in Greece were adapted into two television series (''My Family and Other Animals'', 1987, and ''The Durrells'', 2016–2019) and one television film (''My Family and Other Animals'', 2005). He was the youngest brother of novelist Lawrence Durrell. Early life and education Durrell was born in Jamshedpur, British India, on 7 January 1925. He was the fifth and youngest child (an elder sister having died in infancy) of Louisa Florence Dixie and Lawrence Samuel Durrell, both of whom were born in India of English and Irish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patrick O'Brian
Patrick O'Brian, Order of the British Empire, CBE (12 December 1914 – 2 January 2000), born Richard Patrick Russ, was an English novelist and translator, best known for his Aubrey–Maturin series of sea novels set in the Royal Navy during the Napoleonic Wars, and centred on the friendship of the English naval captain Jack Aubrey and the Irish–Catalan physician Stephen Maturin. The 20-novel series, the first of which is ''Master and Commander'', is known for its well-researched and highly detailed portrayal of early 19th-century life, as well as its authentic and evocative language. A partially finished 21st novel in the series was published posthumously containing facing pages of handwriting and typescript. O'Brian wrote a number of other novels and short stories, most of which were published before he achieved success with the Aubrey–Maturin series. He also translated works from French to English, and wrote biographies of Joseph Banks: A Life, Joseph Banks and Picasso. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estrous Cycle
The estrous cycle (, originally ) is the set of recurring physiological changes that are induced by reproductive hormones in most mammalian therian females. Estrous cycles start after sexual maturity in females and are interrupted by anestrous phases, otherwise known as "rest" phases, or by pregnancies. Typically, estrous cycles repeat until death. These cycles are widely variable in duration and frequency depending on the species.Bronson, F. H., 1989. Mammalian Reproductive Biology. University of Chicago Press, Chicago, IL, USA. Some animals may display bloody vaginal discharge, often mistaken for menstruation. Many mammals used in commercial agriculture, such as cattle and sheep, may have their estrous cycles artificially controlled with hormonal medications for optimum productivity. The male equivalent, seen primarily in ruminants, is called rut. Differences from the menstrual cycle Mammals share the same reproductive system, including the regulatory hypothalamic system t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
