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Chimpanzees lack the prominent sagittal crest and associated head and neck musculature of gorillas. [14] [41] Chimpanzee hand (left) compared to human hand. Chimpanzee bodies are covered by coarse hair, except for the face, fingers, toes, palms of the hands, and soles of the feet. Chimpanzees lose more hair as they age and develop bald spots.
Male and female western chimpanzees differ in their prey. In Fongoli, Senegal, Senegal bushbabies account for 75% of females' prey and 47% of the males'. While males will prey more on monkeys, such as green monkeys (27%) and Guinea baboons (18%), only males were observed to hunt patas monkeys and only females were observed to hunt banded mongooses.
Central chimpanzees live in social groups of around 66 individuals, on average this tends to be more than the group size of western chimpanzee counterparts. It was found that chimpanzees split activity budget into four main categories. [5] In chimpanzees there exists male dominance within these social groups.
The Mind of an Ape is a 1983 book by David Premack and Ann James Premack. The authors argue that it is possible to teach language to (non-human) great apes.They write: "We now know that someone who comprehends speech must know language, even if he or she cannot produce it."
A year after leaving Lucy, Carter returned with a few of Lucy's belongings such as her mirror. Lucy and a group of chimpanzees greeted her and Lucy embraced her fervently, then left with the other chimpanzees without turning back, which Carter interpreted as Lucy having adapted to life as a chimpanzee.
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.
The Third Chimpanzee: The Evolution and Future of the Human Animal is a 1991 book by academic and popular science author Jared Diamond, in which the author explores concepts relating to the animal origins of human behavior. The book follows a series of articles published by Diamond, a physiologist, examining the evidence and its interpretation ...
The Chimps of Fauna Sanctuary: A Canadian Story of Resilience and Recovery is a non-fiction book, written by Canadian writer Andrew Westoll, first published in May 2011 by HarperCollins. In the book, the author chronicles the time he spent volunteering at the Fauna Sanctuary , an animal refuge in Quebec for chimpanzees that had been used for ...