{"fact":"While some crows excel at multi-step problems, they may struggle when they have to choose the right tool to bring to the next step. This might be because it's harder to remember what to do.","context":"It is likely that the crows would fail if they had to choose which tool to bring to the second stage of the problem. ... This difficulty likely involves a failure of inhibition.","source":"Jennifer Vonk, Sticks and stones: Associative learning alone?, 10.3758/s13420-019-00387-4","index":477}