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
Lobsters have blue blood.
476
Domestic pigs average a top speed of about 11 miles per hour.
182
The oldest recorded elephant lived for 82 years.
213
Whales and dolphins can't taste anything other than salt.
11
The reindeer is the only mammal that can see UV light.
17
The head of a jellyfish is called the "Bell."
6
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13