A 42-foot sperm whale has about 7 tons of oil in it.
209
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
There's a rare breed of pig that looks like a sheep.
14
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12