Racehorses can wear out new horse shoes in one race.
38
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
When it comes time to give birth, the female shark loses her appetite so she won't be tempted to eat her own pups.
280
An elephant trunk has no bone but 40,000 muscles.
24
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The largest earthworm on record was found in South Africa and measured 22 feet.
151