Hummingbirds can't walk.
32
The energy of a discharge of an electric eel could start 50 cars.
53
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Porcupines float in water!
69
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
A hippo can open its mouth wide enough to fit a 4 foot tall child inside!
23
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52