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Some crows have evolved the ability to drop hard-shelled nuts onto roads and wait for cars to crack them open. Some have even figured out that dropping them onto pedestrian crossings can give them the safety of retrieving the nut without getting run over.
youtube.com/watch?v=NenEdSuL7Q

Original tweet : twitter.com/tilbots/status/123

· twoot · 0 · 2 · 2
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