Sharks have been on the planet longer than trees.
14
Bats sleep 18-20 hours per day.
5
When dragonflies mate, their tails form a love heart.
22
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
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Ants have tiny magnetic compasses in their antennae which help them navigate.
9