Domestic pigs average a top speed of about 11 miles per hour.
182
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
A scorpion can hold its breath for up to 6 days.
19
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492