Crow skiing down a roof
Niko Niko · 3 则 HN 推荐
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A one-minute clip of a crow repeatedly sliding down a snowy roof on a small lid, apparently just for fun.
HN 推荐的原因： Offered as vivid evidence that animals, crows in particular, play for pleasure and display intelligence beyond survival needs.
“This video of a crow repeatedly "skiing" down a roof changed my view of how animals play” 阅读 HN 讨论 ↗