Math isn't just a human thing. All kinds of animals, from African grey parrots to chimpanzees, are thought to have some kind of mathematical ability, but it can be hard to test. Now, a new study finds ...

Birds are brilliant animals, and crows are among the most intelligent. They’re often too smart for their own good, and they ...

A study finds that carrion crows can be taught to count and make vocalizations that indicate the number counted, much in the same way that human... Crows can count out loud like human toddlers — when ...