Rhesus macaques in U.S. research laboratories frequently pull out their own hair, pace in tight loops, and rock back and ...

You’ll want to know why a tiny macaque clutching a stuffed orangutan has sent people online into a frenzy. Punch‑kun was abandoned at birth, raised by zookeepers, and now carries his plush companion ...

Researchers have found that the size of the amygdala—a region of the brain involved in processing emotions—could be linked to social tolerance in macaque monkeys. Their research, published today in ...

Understanding macaque behavior that shifts from funny to dangerous quickly ...

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 ...

The video shows Punch the young macaque seeking physical contact not from his stuffed toy, but from another monkey, eventually climbing onto its back for a vital social behavior for young macaques ...