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This may be due to difference in the rewards gained by tool use: Gombe chimpanzees collect 760 ants/min compared to 180 ants/min for the Tai chimpanzees. [25] Some chimpanzees use tools to hunt large bees (Xylocopa sp.) which make nests in dead branches on the ground or in trees. To get to the grubs and the honey, the chimpanzee first tests for ...
Research in 2007 shows that chimpanzees in the Fongoli savannah sharpen sticks to use as spears when hunting, considered the first evidence of systematic use of weapons in a species other than humans. [32] [33] Captive gorillas have made a variety of tools. [34] In the wild, mandrills have been observed to clean their ears with modified tools.
Chimpanzees have used stone tools since at least 4,300 years ago. [143] A chimpanzee from the Kasakela chimpanzee community was the first nonhuman animal reported making a tool, by modifying a twig to use as an instrument for extracting termites from their mound. [144] [145] At Taï, chimpanzees simply use their hands to extract termites. [125]
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Diagram of brain – topography of the main groups of foci in the motor field of chimpanzee. Chimpanzees make tools and use them to acquire foods and for social displays; they have sophisticated hunting strategies requiring cooperation, influence and rank; they are status conscious, manipulative and capable of deception; they can learn to use ...
The nests may be 1 to 5 feet (0.30 to 1.52 m) wide in diameter and are constructed by individuals. Young animals nest with their mother but do not construct nests until three years of age, initially in close proximity to their mother. [19] Gorilla nests are distributed randomly and the tree species used appears to be opportunistic. [2]
One troop of chimpanzees may exhibit a learned behavior unique from another troop of chimpanzees, such as various tool usage. Some chimpanzee troops have been observed consuming aspilia, [1] for medicinal purposes, because it has been seen to remove intestinal parasites, and is otherwise unpalatable. [citation needed]