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
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The largest breed of rabbit is the Flemish Giant.
65
Cows can sleep standing up, but they can only dream lying down.
745
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2