When dragonflies mate, their tails form a love heart.
22
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Sharks have been on the planet longer than trees.
14
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Female kangaroos have three vaginas.
2
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456