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 ...

Fall is here. We are hearing and seeing the birds of doom and gloom — at least when it comes to the spookiness of Halloween! They are the crows, ravens, owls and vultures. Why are these birds ...