Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A group of pugs is called a grumble.
10
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Sharks, like other fish, have their reproductive organs in their chests.
248
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212