[短片] New videos prove crows can make complex tools that only humans have made before

本帖最後由 toylet 於 2016-1-11 02:36 編輯

Source: http://arstechnica.com/science/2 ... s-have-made-before/
Tiny cameras attached to the birds' tails give a clear view of corvid intelligence.

Video 1: https://youtu.be/llK_XVFZmaQ


Video 2: https://youtu.be/pqe3HtIdkNU