The heart of a mouse beats 650 times per minute!
53
The sloth (a mammal) moves so slowly that green algae can grow undisturbed on its fur!
104
It is possible for a scorpion to sting itself to death as they are not immune to their own poison!
39
A snail can sleep for three years.
40
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
In the last 4,000 years, no new animals have been domesticated.
25
After eating, a housefly regurgitates its food and then eats it again!
16
Most elephants weigh less than a blue whale's tongue.
442