Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The largest earthworm on record was found in South Africa and measured 22 feet.
151
The cat brain weighs about 30g.
167
Whales and dolphins can't taste anything other than salt.
11
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Tigers, leopards, and jaguars love "Calvin Klein's Obsession for Men". The scent is used to attract animals to cameras in the wilderness, and was even a turn on for one pair of Jaguars who were subject to it.
17