Lurch, a Watusi bull, had the largest horns in the world.
32
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
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
The Basenji dog is the only dog that is not able to bark.
4
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Cats and dogs can hear ultrasound.
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