All 15 motives surfaced, Comfort included. The team sorted them into five families: environmental, physiological, ...

Chimpanzees naturally ingest surprising amounts of alcohol from ripe, fermenting fruit. Careful measurements show that their typical fruit diet can equal one to two human drinks each day. This ...

For decades, chimpanzees have captivated scientists and animal lovers alike with their remarkable similarities to humans. Beyond their physical resemblance and genetic kinship—sharing approximately 98 ...

Chimpanzees are always adjusting their behavior Our results show chimpanzees consistently adjust their nesting behavior in relation to environmental conditions. They preferred to build nests in places ...

Every evening, as they move from place to place through the forest, chimpanzees stop to build a nest – most often in a tree – to sleep in. Using a selection of branches, leaves and twigs, they create ...

For decades, the 200 Ngogo chimpanzees in Kibale National Park, Uganda, lived what seemed a calm and normal existence. Males and females hunted together, groomed each other and went on patrols through ...

Aaron Sandel can pinpoint when it all started. The codirector of the Ngogo Chimpanzee Project had been observing a group of apes on June 24, 2015, in Uganda’s Kibale National Park, where the project ...

Researchers have documented a permanent split between the largest-known group of wild chimpanzees, which erupted into a lethal civil war over the past several years — findings that could help ...

They’re going apes – – t. A scenic Ugandan jungle has become a bloody battlefield as two rival chimpanzee clans wage what could be the first recorded primate “civil war.” The ongoing simian conflict ...

A rare and deadly “civil war” has broken out between two factions of chimps in Africa, according to new research. The dispute erupted in what was once a cohesive group of about 200 chimps whose ties ...