The seahorse is the only fish to have a neck.
12
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
There's a rare breed of pig that looks like a sheep.
14
When you shave a guinea pig it looks like a little hippo.
19
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Condoms were originally made of animal intestines or linen.
347
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23