When cats are happy, they may squeeze their eyes shut.
10
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
17
A group of kittens is called a "kindle".
10
One litter of kittens can be produced by more than one father.
57
When dragonflies mate, their tails form a love heart.
22