Evolution of cognition

A young chimpanzee makes eye contact. New research suggests that chimpanzees are capable of rational thought and changing their decisions when new evidence emerges. Illustration: depositphotos.com

Psychologists have discovered that chimpanzees are capable of rational thought, similar to humans.

A team of researchers from the University of California, Berkeley, and partner institutions studied chimpanzees in the E-Ngamba Reserve in Uganda and found that they change their choices when given stronger evidence – a finding that places rationality at the center of