In a celebrated case a few years ago, an Israeli man was targeted by a local crow in an apparent revenge attack. The bird's chick fell out of its nest and the man carried it outside of his backyard. It wasn't long before the crow had him in its eye sights, forcing the man to wear a helmet and carry a parasol for self protection. That kind of intelligence wasn't a fluke. Take a look at this 2008 talk at the Ted Conference given by Joshua Klein, who showed off an amazing video displaying how crows quickly adapt to their surroundings.
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