A new study suggests our primate ancestors were kissing - but how it emerged remains a subject of debate, as does why it ...

A new study that examines how kissing evolved suggests that ape ancestors and early humans, like Neanderthals, probably ...

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 ...

The frequently cited 99% similarity between human and chimp DNA overlooks key differences in the genomes. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Grunts, barks, screams and pants ring through Taï National Park in Cȏte d’Ivoire. Chimpanzees there combine these different calls like linguistic Legos to relay complex meanings when communicating, ...