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
Cats and dogs can hear ultrasound.
350
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
A domestic cat can sprint at about 31 miles per hour.
274
The cat brain weighs about 30g.
167
The largest breed of rabbit is the Flemish Giant.
65
