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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?
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New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.
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Follow engineers and woodworkers as they rebuild an iconic American covered bridge.
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Follow the harrowing operation to rescue 12 boys stranded in a flooded cave in Thailand.
