What seems like a simple human gesture may actually carry roots far deeper in our evolutionary past. A new study has uncovered evidence that kissing evolved in the common ancestor of humans and other ...

Why the Latest Science Leads Us to a New Theory of Human Nature, by Jonathan Leaf (Bombardier, 320 pp., $21) Ever since Darwin, biologists have believed that much could be learned about human nature ...

Humans are far from the only primates engaging in same-sex sexual activity. A new study found instances in which 59 nonhuman primate species, including bonobos, chimpanzees and macaques, have taken ...

AMSTERDAM — Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 million years ago, according to a study published on Wednesday. Researchers from ...

Cooperative behaviour and prosociality in nonhuman primates constitute a vital area of research that illuminates the evolutionary origins of complex sociality. Studies indicate that primates employ a ...

Image by Helena Sushitskaya from Pixabay UC San Diego’s Federico Rossano breaks down the science behind dogs’ “word buttons,” ...

Adaptation and behavior in the primate fossil record / Callum F. Ross ... [et al.] -- Functional morphology and in vivo bone strain patterns in the craniofacial region of primates: beware of ...

For decades, scientists believed that bonobos, one of our closest living relatives, were among the most peaceful primates.