A new study looks at the process of DNA methylation, in which chemical tags known as methyl groups turn genes on and off and ...

Friendship beyond humans: Research shows cows, chimpanzees, and other animals form selective, lasting bonds that provide emotional support and companionship. Survival benefits: In chimpanzees, strong ...

An orangutan mom doesn’t have a partner to make dinner or put on a dress for—orangutans live mostly alone—but she does handle ...

Ilia Ivanov was determined to find a way to hybridize humans and chimps, but the idea never should’ve made it beyond science ...

Nearly 17 years after Michael Jackson's death, his beloved chimpanzee Bubbles is still aping around. That's right, the primate—now 43 years old—is alive and well, living at the Center for Great Apes ...

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 ...

A 30-year study documents a rare split within a chimpanzee community in Uganda’s Kibale National Park — one that sparked a deadly war. Two rival chimp groups have staged coordinated raids that killed ...

If you liked this story, share it with other people. A captive chimpanzee in Japan spontaneously ripped floorboards from a walkway and used them as instruments to perform structured, rhythmic drumming ...

Free Expression is a daily newsletter on American life, politics and culture from the Opinion pages of The Wall Street Journal. Sign up and start reading Free Expression today. Warfare is often ...

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 ...