by Alex Taylor, ScienceAlert
My ideas about animal behaviour were turned upside down in 2002 when I watched Betty, a New Caledonian crow, fashion a hook from a piece of wire and use it to pull a small container with meat from a tube.
Betty’s behaviour captivated scientists because it seemed so creative: there was no obvious solution to the problem yet Betty had found a way. How could this crow be thinking, given it was separated from humans by 620 million years of independent evolution?
Our latest research, published today, helps us answer this question.