Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Mosquitoes don't just bite you, they also pee on you.
11
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
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11