Dolphins have names for one another.
18
In Australia, there are spiders big enough to eat snakes.
20
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
The largest earthworm on record was found in South Africa and measured 22 feet.
151
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293