Crows and their corvid kin have brains that, relative to their body size, are among the largest of any bird. Crows congregate in Burnaby, British Columbia. Research suggests that like humans and other ...

This primate tier list ranks some of the most remarkable species on the planet. Each primate is judged on intelligence, strength, behavior, and evolutionary advantages. Some unexpected species rise to ...

Primate facial expressions form an integral component of nonverbal communication and social interaction, underpinned by a complex arrangement of facial muscles. Recent interdisciplinary studies have ...