Social insecurity also stresses chimpanzees

An international team of researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, conducted behavioral observations and collected urine samples for cortisol analysis of male chimpanzees ...

Human impacts erode behavioral diversity in chimpanzees

Compared to other animals, chimpanzees show tremendous variation across groups in their behavior—from the types of tools they use in their feeding behavior to the specific gestures they use in communication. Research in ...

Dust affects tooth wear and chewing efficiency in chimpanzees

In a new study, Leipzig researchers collected feces from chimpanzees living at Taï National Park, Ivory Coast, and analyzed chewing efficiency during dry and rainy periods. They found that increased dust loads during dry ...

New chimpanzee culture discovered

Chimpanzees have a more elaborate and diversified material culture than any other nonhuman primate. Their behavior varies across tropical Africa in a way that does not always correspond to ecology. For instance, only West ...

Chimpanzee 'mini-brains' hint at secrets of human evolution

At some point during human evolution, a handful of genetic changes triggered a dramatic threefold expansion of the brain's neocortex, the wrinkly outermost layer of brain tissue responsible for everything from language to ...

Competent chimpanzee nutcrackers

Humans consider themselves as the tool user par excellence. Previous work comparing human tool use skills to that of other species tended to place the animals in artificial conditions far removed from their natural environments. ...

Chimpanzees sniff out strangers and family members

Chemical communication is widely used in the animal kingdom to convey social information. For example, animals use olfactory cues to recognize group or family members, or to choose genetically suitable mates. In contrast ...

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Chimpanzee

Pan troglodytes Pan paniscus

Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan where the Congo River forms the boundary between the native habitat of the two species:

Chimpanzees are members of the Hominidae family, along with gorillas, humans, and orangutans. Chimpanzee are thought to have split from human evolution about 6 million years ago and thus the two chimpanzee species are the closest living relatives to humans, all being members of the Hominini tribe (along with extinct species of Hominina subtribe). Chimpanzees are the only known members of the Panina subtribe. The two Pan species split only about one million years ago.

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