When dragonflies mate, their tails form a love heart.
22
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
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
There's a rare breed of pig that looks like a sheep.
14
When cats are happy, they may squeeze their eyes shut.
10
Bats sleep 18-20 hours per day.
5
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13