Like Humans, Other Great Apes Think Differently From One Another

Source: Association for Psychological ScienceScientists have long assumed that if a particular ability—such as using gestures to communicate—is found only in species closely related to humans, then the trait probably appeared late in our evolutionary history. As a new study suggests, however, many great apes species (including humans) have cognitive abilities that develop, wax, and wane throughout life, varying between individuals as different personalities and life experiences shape