If a man could run as fast for his size as an ant can, he could run as fast as a racehorse.
108
Bats always turn left when exiting a cave.
40
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Rats can tell the difference between two human languages.
49
One litter of kittens can be produced by more than one father.
57
A pig's penis is shaped like a corkscrew.
22
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
A marine catfish can taste with any part of its body.
38