Bird Brain - S44.E27
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?
Bird Brain - S44.E27
December 20, 2017
0
ratings
0
reviews
0
video reviews