{"fact":"New Caledonian crows demonstrate an impressive ability to adapt their tool-making skills even when they can't see the problem and their tools at the same time.","context":"They continued to do so when they could not simultaneously see the tool-manufacturing material and the apparatus requiring the use of a tool.","source":"Brenna Knaebe; Alex H. Taylor; Douglas M. Elliffe; Russell D. Gray, New Caledonian crows show behavioural flexibility when manufacturing their tools, 10.1163/1568539x-00003411","index":133}