{"fact":"The crows' tool-making wasn't random; they seemed to understand the need for a longer tool and used their creations purposefully to get food.","context":"This typically required transporting the compound to the box for use...The successful birds acted in a seemingly purposive manner, using the compound tools to aim at the food immediately after creating them.","source":"A. Bayern; A. M. P. Bayern; A. Bayern; S. Danel; S. Danel; A. Auersperg; A. Auersperg; A. Auersperg; B. Mioduszewska; A. Kacelnik, Compound tool construction by New Caledonian crows, 10.1038/s41598-018-33458-z","index":359}