Scans show smart crows' brains are a lot like those of humans

Crows don't forget a face — and they hold grudges, too.

Researchers in Seattle revealed last year that captured crows remember the face of their abductor. Even though years had passed since they saw the threatening face, the crows in the experiment would taunt their captor and dive-bomb him, suggesting the birds held tightly to a negative association.

Now the researchers' follow-up study shows that the birds' brains light up much like the human mind when they see a face they know.