Bird Brain

December 20, 2017
0.0%

NOVA - S44 - E27

Bird Brain

Watch astonishing tests of avian aptitude: parrots that can plan for the future, jackdaws that can “read” human faces, and crows that can solve multi-step puzzles with tools like pebbles, sticks, and hooks. Could these just be clever tricks, based on instinct or triggered by subtle cues from their human handlers?

NOVA: Season 44 - 28 Episode s