Two species on Earth are known to use hook-shaped tools: humans and New Caledonian crows. And now, for the first time, the people have caught the birds using them on camera. There are crows all over ...

Crows can spontaneously use up to three tools in the correct sequence to achieve a goal, something never before observed in non-human animals without explicit training. Sequential tool use has often ...

Mounting tiny video cameras to the tail feathers of crows, researchers discovered that the birds use a variety of tools to seek food, and even make their own tools, plucking, smoothing and bending ...