Chimpanzee (Pan troglodytes)

MammalGreat ApePrimate

Overview

The chimpanzee (Pan troglodytes) is a great ape native to central and west African forests and savanna-woodland mosaics. Together with the bonobo (Pan paniscus), the chimpanzee is one of humans' two closest living relatives. Chimpanzees are notable for their advanced social cognition, tool use, culturally variable behaviours between populations, and complex political dynamics within groups.

Conservation note: The chimpanzee is currently classified as Endangered on the IUCN Red List (verify current status at iucnredlist.org before publication).

Habitat & Range

Chimpanzees inhabit a range of habitats across equatorial Africa, including tropical rainforest, gallery forest, savanna-woodland mosaics, and montane forest. Habitat preferences differ between subspecies and between communities. Several recognised subspecies span west, central, eastern, and Nigeria–Cameroon populations.

Diet

Chimpanzees are omnivorous. The bulk of the diet typically consists of ripe fruit and leaves, supplemented by seeds, bark, pith, flowers, insects — including termites and ants extracted using tools — and, in some populations, mammalian prey such as small monkeys. Hunting is documented in a number of communities and is often a cooperative activity.

Behavior

Chimpanzee social groups are large fission-fusion communities in which individuals associate in smaller subgroups that change composition through the day. Dominance, alliance, and reconciliation are well documented. Tool use is widespread and culturally variable between communities: stick fishing for termites, leaf sponges to collect water, and nut cracking with hammer-and-anvil stones are all examples documented in long-term field studies.

Human Interaction & Conservation

Major threats include habitat loss, hunting for bushmeat, capture for the illegal pet trade, and disease — including human-introduced respiratory infections, which can be especially severe in habituated communities. Long-term research projects and protected areas have contributed substantially to chimpanzee conservation, although the species remains highly threatened.

Appearance & Recognition

Chimpanzees are noticeably lighter and more athletic in build than gorillas, with proportionally longer arms relative to body size — an arrangement adapted for both knuckle-walking on the ground and active climbing and brachiation in the canopy. The body is covered in coarse dark brown to black hair, while the face, ears, hands, and feet are largely bare. Facial skin colour varies with age: many infants and juveniles show pale pinkish or tan faces, while adult faces typically darken to brown or near-black, sometimes with paler patches around the muzzle.

Recognisable features include prominent rounded ears, a relatively flat but slightly projecting muzzle, and a less pronounced brow ridge than in gorillas. Adult body size, beard development, and facial scarring vary between subspecies and between individuals; some older adults develop bald patches on the head or grey hair on the back. Chimpanzees can be distinguished cautiously from gorillas in the same range by their smaller size, more upright posture when standing, and more agile climbing — but overall build and behaviour are more reliable than any single visual cue.

Similar Animals

Chimpanzees are most closely related to bonobos within the genus Pan. Other great apes — gorillas, orangutans, and humans — make up the rest of the family Hominidae.

More photos of the chimpanzee

Chimpanzee (Pan troglodytes) using a stick as a tool in a zoo enrichment setting. — Chimpanzee using a stick as a tool — captive setting, demonstrating documented tool-use behaviour.
Image: Wilfredor, CC0, via Wikimedia Commons.

Chimpanzee (Pan troglodytes) interacting with an enrichment box. — Chimpanzee solving an enrichment task.
Image: Damien Neadle, CC BY-SA 4.0, via Wikimedia Commons.

Frequently Asked Questions — Chimpanzee

How similar are chimpanzees to humans genetically?

Chimpanzees and humans share a very large fraction of their genetic material. Exact figures depend on what is being compared (coding regions vs whole genome, single-nucleotide differences vs structural differences). The frequently quoted high similarity does not mean the species are physically or cognitively interchangeable.

Do chimpanzees really use tools?

Yes. Tool use is extensively documented across multiple chimpanzee communities. Examples include stick tools for termite or ant fishing, leaf sponges, hammer-and-anvil nut cracking, and the use of weapon-like sticks in hunting smaller primates. Specific tool repertoires vary between communities — a key example of cultural variation in non-human animals.

What's the difference between chimpanzees and bonobos?

Chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) are two separate species in the same genus. They differ in body proportions, social structure, and behaviour — bonobos are typically described as more peaceable and matriarchal, while chimpanzees have more pronounced male dominance and inter-community aggression. Their geographic ranges are also separated by the Congo River.

Are chimpanzees endangered?

Yes. The chimpanzee is currently classified as Endangered on the IUCN Red List, with subspecies varying in status. Verify the current assessment before quoting specific status.

Sources and further reading

Authoritative wildlife references used for general educational context. Conservation status should always be verified against current IUCN Red List data. External links open in a new tab.

UniversityAnimal Diversity Web — Pan troglodytes (chimpanzee) — University of Michigan species account
ReferenceEncyclopaedia Britannica — Animals reference — Editor-reviewed encyclopedia overview entries
Wildlife referenceIUCN Red List of Threatened Species — Authoritative source for current conservation status