A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Cats cannot taste sweet things.
22
A cow gives nearly 200,000 glasses of milk in her lifetime.
33
A kangaroo cannot jump if its tail is off the ground.
29
Dolphins nap with one eye open.
-7
Frogs sometimes eat enough fireflies that they themselves glow.
71
In the last 4,000 years, no new animals have been domesticated.
25
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52