Dolphins have names for one another.
18
Condoms were originally made of animal intestines or linen.
347
Cats sleep for 70% of their lives.
8
There's a rare breed of pig that looks like a sheep.
14
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2