A similar disorganized attachment can occur in captive chimpanzees, particularly orphans who are raised by humans. A lack of a permanent caregiver can lead to this more fearful behavior. However, in ...

Chimpanzees living in a sanctuary in Africa have developed a “fashion trend” for dangling blades of grass or sticks from their ear holes and their behinds, a new study shows. In 2010, researchers ...

Humans are far more monogamous than our primate cousins, but less so than beavers, a new study suggests. Researchers from the University of Cambridge in England analyzed the proportion of full ...

Humans have a monogamy rating of 66% full siblings, ahead of meerkats (60%) but behind beavers (73%). Meanwhile, our evolutionary cousins fall at the bottom of the table - with mountain gorillas at 6% ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Chimpanzees are our closest primate relatives, sharing 99 percent of ...