We’ve known for a long time that crows and ravens (and other corvids) are very, very clever birds, but we’re continually surprised by just how clever they are. As scavengers, their livelihood is entirely dependent on their ability to find food, meaning that they get rewarded for creativity. This BBC video shows what happens when an animal that gets rewarded for creativity evolves over untold generations. It get to a point where cleverness and the ability to reason combine for an epic level of problem solving:
via DVICE
