All hail the woolly worm, harbinger of winter. The annual migration of the wooly worm caterpillar has begun, a sure sign that ...

What is a woolly monkey? An animal called a woolly monkey seems like it should live in the frozen north, not the sweltering Amazon Basin. But the thick coat of fur covering these large primates ...

What killed the last woolly mammoths? What killed the last woolly mammoths? Mammoth-elephant hybrids could be coming soon. Should they be? Mammoth-elephant hybrids could be coming soon.