If you're a parent, you know how testy babies, toddlers, and children of all ages can get when they get 'hangry'—that is, hungry and angry at the same time. It can get scary! San Diego Zoo may not be ...

Cockatoos are such beautiful birds. They come in all kinds of colors, too, from white to soft peachy-pink, and even black. Every Cockatoo is completely unique, and they're bigger than they look, too.

Source: JJ Harrison, via Wikimedia Commons. It’s surprising that tool use isn’t more common among parrots in the wild. After all, parrots share several key traits with primates and other tool-using ...