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Judo with Nature
2m 18s
Planting trees in front of dikes is one way to keep large waves from flooding the shore.
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Video description: 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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