The Ngogo chimpanzees enjoy a particularly good life, Dr. Langergraber said. The forest is rich with food, and the leopards that once hunted the apes have largely been eradicated by humans.

But Ngogo chimpanzee females, unlike many menopausal humans and whales, spend pretty much no time grandmothering. Related: Large study finds genetic signals that might be used to predict early ...

The problem became particularly stark on Dec. 31, 2016, when a viral outbreak was detected at a field site for research on chimpanzees, called Ngogo, in Uganda's Kibale National Park.

And compared with other chimpanzee populations, the Ngogo chimps tend live a long time. Leonora, a postreproductive female of the Ngogo community of chimpanzees in Kibale National Park, Uganda.

The new findings emerged from a long-term study known as the Ngogo Chimpanzee Project. The conservation/research project has followed a large community of chimpanzees in Uganda’s Kibale National ...

A chimpanzee doesn't hesitate to make it clear when it wants attention. The closest cousin of humans, this species of great ape has effective ways of communicating what it needs.Researchers have ...

The mother-daughter chimps, called Sutherland and Fiona by researchers, are part of the Ngogo chimpanzee community in Kibale National Park in Uganda.

The discovery comes as the result of 21 years’ worth of observing the Ngogo community of wild chimpanzees in Kibale National Park, Uganda. Well, that, and collecting a lot of chimp urine from ...

Hunters wiped out their only predators, leopards, in the 1960s, and humans no longer kill the chimps either. Ngogo chimpanzees also have plenty of fruit and eat more meat than neighboring chimp ...

Chimps who are known relatives have ended up on different sides of the conflict, split between the two Ngogo factions—known as the Western and Central groups. A chimpanzee featured in the ...

A chimpanzee doesn't hesitate to make it clear when it wants attention. The closest cousin of humans, this species of great ape has effective ways of communicating what it needs.Researchers have ...