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Ape skeletons. A display at the Museum of Zoology, University of Cambridge.From left to right: Bornean orangutan, two western gorillas, chimpanzee, human. The evolution of human bipedalism, which began in primates approximately four million years ago, [1] or as early as seven million years ago with Sahelanthropus, [2] [3] or approximately twelve million years ago with Danuvius guggenmosi, has ...
Comparative anatomy is the study of similarities and differences in the anatomy of different species. It is closely related to evolutionary biology and phylogeny [ 1 ] (the evolution of species). The science began in the classical era , continuing in the early modern period with work by Pierre Belon who noted the similarities of the skeletons ...
The loss of the intercranial joint was a direct functional necessity to strengthen the broad and long platybasic skull when the animal was out of the water. [2] The tubular lower jaw of the Elginerpeton , compared to the flat-lamina jaw shape of fishes gave it superior cross-sectional force, required when not supported in an aquatic setting ...
In many cases, spines are a defense mechanism that help protect the animal against potential predators. Because spines are sharp, they can puncture skin and inflict pain and damage which may cause the predator to avoid that species from that point on. The spine of some animals are capable of injecting venom. In the case of some large species of ...
Anatomy and Physiology of Animals/The Skeleton; Anatomy and Physiology of Animals/Print version; Usage on en.wiktionary.org bakabonyo; Usage on eo.wikipedia.org Vertebraro; Usage on es.wikibooks.org Curso de alemán nivel medio con audio/Lección 003fb; Usage on es.wiktionary.org espinazo; Usage on fa.wikipedia.org ستون مهرهها ...
Stalking Cat (born Dennis Avner; August 27, 1958 – November 5, 2012) [1] was an American man known for his extensive body modifications, which were intended to increase his resemblance to a tiger. [2] For his 14 surgical procedures towards that goal, he held a world record for "most permanent transformations to look like an animal".
Lordosis behavior (/ l ɔːr ˈ d oʊ s ɪ s / [1]), also known as mammalian lordosis (Greek lordōsis, from lordos "bent backward" [1]) or presenting, is the naturally occurring body posture for sexual receptivity to copulation present in females of most mammals including rodents, elephants, cats, and humans.
The tetrapods, including all large- and medium-sized land animals, have been among the best understood animals since earliest times. By Aristotle 's time, the basic division between mammals, birds and egg-laying tetrapods (the " herptiles ") was well known, and the inclusion of the legless snakes into this group was likewise recognized. [ 28 ]