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English: Comparison of size of adult chimpanzee (Pan troglodytes) and adult human. This image assumes a height of 1.75 m for the human and 1.2 m for the chimpanzee.
They usually live less than 15 years, although individuals that reach 12 years may live an additional 15 years. On rare occasions, wild chimpanzees may live nearly 60 years. Captive chimpanzees tend to live longer than most wild ones, with median lifespans of 31.7 years for males and 38.7 years for females. [75]
A chimpanzee's testicles are unusually large for its body size, with a combined weight of about 4 oz (110 g) compared to a gorilla's 1 oz (28 g) or a human's 1.5 ounces (43 g). This relatively great size is generally attributed to sperm competition due to the polygynandrous nature of chimpanzee mating behaviour .
Formerly the bonobo was known as the "pygmy chimpanzee", despite the bonobo having a similar body size to the common chimpanzee. The name "pygmy" was given by the German zoologist Ernst Schwarz in 1929, who classified the species on the basis of a previously mislabeled bonobo cranium, noting its diminutive size compared to chimpanzee skulls.
This is a list of large extant primate species (excluding humans) that can be ordered by average weight or height range. There is no fixed definition of a large primate, it is typically assessed empirically. [1]
The Hominidae (/ h ɒ ˈ m ɪ n ɪ d iː /), whose members are known as the great apes [note 1] or hominids (/ ˈ h ɒ m ɪ n ɪ d z /), are a taxonomic family of primates that includes eight extant species in four genera: Pongo (the Bornean, Sumatran and Tapanuli orangutan); Gorilla (the eastern and western gorilla); Pan (the chimpanzee and the bonobo); and Homo, of which only modern humans ...
From left: Comparison of size of gibbon, human, chimpanzee, gorilla and orangutan. Non-human hominoids do not stand upright as their normal posture. The families, and extant genera and species of hominoids are: Superfamily Hominoidea [25] Family Hominidae: hominids ("great apes") Genus Pongo: orangutans Bornean orangutan, P. pygmaeus
Orang-Outang, sive Homo Sylvestris: or, the Anatomy of a Pygmie Compared with that of a Monkey, an Ape, and a Man (1699) is a book by the British natural philosopher Edward Tyson. Regarded as a seminal work on anatomy, this volume led to Tyson being known as the father of comparative anatomy .