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Adult chimpanzees have an average standing height of 150 cm (4 ft 11 in). [34] Wild adult males weigh between 40 and 70 kg (88 and 154 lb), [35] [36] [37] and females weigh between 27 and 50 kg (60 and 110 lb). [38]
Although large male chimpanzees can exceed any bonobo in bulk and weight, the two species broadly overlap in body size. Adult female bonobos are somewhat smaller than adult males. Body mass ranges from 34 to 60 kg (75 to 132 lb) with an average weight of 45 kilograms (99 lb) in males against an average of 33 kg (73 lb) in females. [35]
Adult chimpanzees in the wild weigh between 40 and 65 kilograms (88 and 143 pounds). Males can measure up to 145 centimetres (57 inches) and females up to 120 centimetres (47 inches) in height. The chimpanzee's body is covered with coarse black hair, except for the face, fingers, toes, palms of the hands, and soles of the feet.
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]
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 .
Adult Tripedalia cystophora ... One early suggestion was brain size (or weight, which provides the same ordering.) ... Pygmy chimpanzee or bonobo: 6,250,000,000^
Precocial mammal species generally have greater adult body weights than altricial mammals as precocial mammals have markedly longer gestation periods than altricial mammals. [26] The neonatal of larger mammals develop relatively more quickly and thus making it more likely that a large mammal would produce a more well-developed neonate as a ...
The majority of mammals are born with a brain close to 90% of the adult brain weight. [14] Humans are born with 28% [ 14 ] of the adult brain weight, chimpanzees with 54%, [ 14 ] bottlenose dolphins with 42.5%, [ 15 ] and elephants with 35%.