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TED 2008: Crow vending machine maker Joshua Klein

I have been posting links to coverage of the TED Talks that I think are most interesting. This one is cool enough to have a post of its own. I am fascinated by how smart Crows are. They use tool and solve complicated problems. In this TED Talk, Joshua Klein talks about how he trained crows to put coins in a vending machine to get peanuts. Once he took away the supply of coin, the crows went out and found their own to bring back to the machine. Amazing.