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by visarga
3132 days ago
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I think some birds are actually pretty smart and can learn by imitating other birds, so it's a cultural thing. All it takes is one bird to discover it. Take a look at this video: "Crow uses a vending machine". It was an experiment where they trained crows to collect coins and put them into a vending machine for a few grains. https://www.youtube.com/watch?v=1qSsVBPh9Lo |
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