How does a kangaroo escape a petting zoo? It's not the opening line to a dad joke. If you're Chesney the kangaroo, you scale an eight-foot (2 1/2 meter) fence and go on the lam for three days, giving ...

A porcupine when threatened turns its rear to the predator, erects its quills and begins swinging its tail like a club.

Sur was different from the start. While the other alpacas kept their distance or got annoyed with the playful baby goats, he did the opposite. Every time the little goats came running, full of energy ...

For mating male octopuses, one limb is more important than all others. That is the third right arm or hectocotylus, which is ...