Up Next
Back to Show
Watch Preview
NOVA
Bird Brain
Season 44
Episode 20
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?
Support Provided By
Unlock with PBS Passport
53:34
What are the weirdest worlds in our solar system, and how did they come to be?
Unlock with PBS Passport
53:34
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.
53:38
Explore big discoveries that have revolutionized our understanding of the universe.
53:10
Follow the quest to recover DNA millions of years old for the very first time.
53:15
Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.
Unlock with PBS Passport
53:17
New evidence reveals the real story of Easter Island and the builders of its stone heads.
53:35
Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.
Unlock with PBS Passport
53:30
A family turns to science in their struggle to rediscover a history obscured by slavery.
