棒を繋いで餌を取るカラスが賢すぎる

#カラス #実験 #動物

【研究・実験映像】
von Bayern et al. (2018), Compound tool construction by New Caledonian crows, Scientific Reports 8, 15676. Movie S1, S5, S6.
https://doi.org/10.1038/s41598-018-33458-z
CC BY 4.0 https://creativecommons.org/licenses/by/4.0/

 
【写真】
Mick Sibley, "Los-cuervos-de-Nueva-Caledonia-intuyen-las-causas-ocultas.jpg", CC BY 4.0, Wikimedia Commons
https://commons.wikimedia.org/wiki/File:Los-cuervos-de-Nueva-Caledonia-intuyen-las-causas-ocultas.jpg
Lennart Hudel, "Corvus moneduloides 40425936.jpg", CC BY 4.0, Wikimedia Commons
https://commons.wikimedia.org/wiki/File:Corvus_moneduloides_40425936.jpg
benkeen, "Corvus moneduloides, Sarramea, New Caledonia 1.jpg", CC0, Wikimedia Commons
https://commons.wikimedia.org/wiki/File:Corvus_moneduloides,_Sarramea,_New_Caledonia_1.jpg