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
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
A dairy cow can produce more milk when listening to music.
446
When dragonflies mate, their tails form a love heart.
22
Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
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
Cats recognise the voice of their owner, but never evolved to care.
22
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17