With an open mind, Goodall discovered that chimpanzees produce tools, form lasting social bonds, and pass on knowledge across ...

The Ngogo chimpanzees of Uganda's Kibale National Park have long been known for violent clashes with neighboring groups, ...

Uganda’s Ngogo chimpanzees are well known for their “chimpanzee warfare.” Primatologists have observed their brutal, lethal ...

A new study has the clearest evidence yet that territorial expansion after lethal conflict can directly boost reproductive ...

A similar disorganized attachment can occur in captive chimpanzees, particularly orphans who are raised by humans. A lack of a permanent caregiver can lead to this more fearful behavior. However, in ...

A groundbreaking ten-year study on the behavior of chimpanzees, reported in the journal Current Biology, reveals that humanity's closest living relative expresses a propensity for human-like warfare.

New research suggests chimpanzees can rethink their choices when new evidence emerges, a hallmark of human-like reasoning.

Techniques for surviving a chimpanzee attack in the wild.

Researchers have found two important building blocks of human speech in wild chimpanzees, one of our closest relatives. A pair of studies finds that chimp communication includes both rhythmic ...