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[88] [89] In artificial selection, animals were selectively bred for specific traits. [90] Given that traits are inherited, populations contain a varied mix of traits, and reproduction is able to increase any population, Darwin argued that in the natural world, it was nature that played the role of humans in selecting for specific traits. [90]
Even compared with other social animals, humans have an unusually high degree of flexibility in their facial expressions. [291] Humans are the only animals known to cry emotional tears. [292] Humans are one of the few animals able to self-recognize in mirror tests [293] and there is also debate over to what extent humans are the only animals ...
The human population exploits a large number of other animal species for food, both of domesticated livestock species in animal husbandry and, mainly at sea, by hunting wild species. [ 160 ] [ 161 ] Marine fish of many species are caught commercially for food.
Human biology tries to understand and promotes research on humans as living beings as a scientific discipline. It makes use of various scientific methods , such as experiments and observations , to detail the biochemical and biophysical foundations of human life describe and formulate the underlying processes using models .
[299] [300] Wild animals make up just 4% of mammalian biomass on earth, while humans and their domesticated animals make up 96%. [284] Various species are predicted to become extinct in the near future, [301] among them the rhinoceros, [302] giraffes, [303] and species of primates [304] and pangolins. [305]
The last common ancestor between humans and other apes possibly had a similar method of locomotion. 12-8 Ma The clade currently represented by humans and the genus Pan (chimpanzees and bonobos) splits from the ancestors of the gorillas between c. 12 to 8 Ma. [31] 8-6 Ma Sahelanthropus tchadensis
The following outline is provided as an overview of and topical guide to zoology: . Zoology – study of animals.Zoology, or "animal biology", is the branch of biology that relates to the animal kingdom, including the identification, structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems.
The hominoids are descendants of a common ancestor.. Homo sapiens is a distinct species of the hominid family of primates, which also includes all the great apes. [1] Over their evolutionary history, humans gradually developed traits such as bipedalism, dexterity, and complex language, [2] as well as interbreeding with other hominins (a tribe of the African hominid subfamily), [3] indicating ...
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