Intelligent somewhat arboreal ape of equatorial African forests

Usage examples of chimpanzee.

There is by now a vast library of described and filmed conversations, employing Ameslan and other gestural languages, with Washoe, Lucy, Lana and other chimpanzees studied by the Gardners and others.

In addition to Ameslan, chimpanzees and other nonhuman primates are being taught a variety of other gestural languages.

Robin Dunbar attracted a great deal of interest in the mid-1990s with his theory that speech developed from grooming in chimpanzees.

Researchers have since shown that the human version of this gene differs by only three molecules, out of 715, from the version carried by mice, and by just two molecules from the version carried by chimpanzees.

Even adult chimpanzees and monkeys that have spent their whole lives in zoos and have never seen a snake share our instinctual herpetological fear.

Solarians would feel more restraint in dealing with humans, Pila, and Kanten than they had toward a chimpanzee.

Many primatologists felt that early efforts to teach chimpanzees ASL had been compromised by the strong bond that always developed between researcher and subject.

Many primatologists will recognize experiments, stories, and anecdotes in this book that were adapted from nonfiction accounts of raising chimpanzees in human families, observations of chimpanzees in the wild, and cognitive and linguistic studies of chimpanzees.

The four colony chimpanzees, on the other hand, learned ninety-one, one hundred and one, fifty-four, and sixty-six signs, respectively.

The cognitive abilities of chimpanzees force us, I think, to raise searching questions about the boundaries of the community of beings to which special ethical considerations are due, and can, I hope, help to extend our ethical perspectives downward through the taxa on Earth and upwards to extraterrestrial organisms, if they exist.

It was the size of a chimpanzee, and shared with its siblings the appearance of something traumatically wounded.

But later observations showed that Washoe and other chimpanzees were perfectly able both to ask questions and to deny assertions put to them.

What seems certain is that about five million years ago, there was an abundance of apelike animals, the gracile Australopithecines, who walked on two feet and had brain volumes of about 500 cubic centimeters, some 100 cc more than the brain of a modern chimpanzee.

Differences in group behavior-something that it is very tempting to call cultural differences-have been reported among chimpanzees, baboons, macaques and many other primates.

Until a few years ago, the most extensive attempt to communicate with chimpanzees went something like this: A newborn chimp was taken into a household with a newborn baby, and both would be raised together-twin cribs, twin bassinets, twin high chairs, twin potties, twin diaper pails, twin baby powder cans.