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Tool making is much rarer, but has been documented in orangutans, [31] bonobos and bearded capuchin monkeys. 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.
In a multi-species study, it was shown that chimpanzees, bonobos and orangutans passed the False Belief Test (see above). [ 25 ] In 2009, a summary of the ToM research, particularly emphasising an extensive comparison of humans, chimpanzees and orang-utans, [ 28 ] concluded that great apes do not exhibit understanding of human referential ...
As with the chimpanzees, orangutans use tools made from branches and leaves to scratch, scrape, wipe, sponge, swat, fan, hook, probe, scoop, pry, chisel, hammer, cover, cushion and amplify. They will break off a tree branch that is about 30 cm long, snap off the twigs, fray one end and then use the stick to dig in tree holes for termites.
The second list shows the number of neurons in the structure that has been found to be representative of animal intelligence. [1] ... Chimpanzee: 2.8 × 10 ^ 10 [56 ...
Matsuzawa, whose research focuses on chimpanzee intelligence, suggests the tradeoff hypothesis as a possible explanation as to why chimpanzees have better memory than humans for immediately capturing and retaining visual stimuli in his paper "Symbolic representation of number in chimpanzees". [1]
Franciscus Bernardus Maria de Waal (29 October 1948 – 14 March 2024) was a Dutch-American primatologist and ethologist.He was the Charles Howard Candler Professor of Primate Behavior in the Department of Psychology at Emory University in Atlanta, Georgia, director of the Living Links Center at the Yerkes National Primate Research Center at Emory, [1] and author of numerous books including ...
Anne E. Russon is a Canadian psychologist and primatologist. She is a researcher and Professor of Psychology at Glendon College, York University, Toronto, Ontario, Canada whose research focuses on learning and intelligence in ex-captive Bornean orangutans. [1]
Ape Cognition and Conservation Initiative is a great ape sanctuary and scientific research facility in Des Moines, Iowa.The facility was announced in 2002 and received its first ape residents in 2004, conceived of as the Great Ape Trust, [1] or Iowa Primate Learning Sanctuary, [2] launched in part by the primatologist Sue Savage-Rumbaugh and Des Moines businessman Ted Townsend.