When dragonflies mate, their tails form a love heart.
22
One litter of kittens can be produced by more than one father.
57
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11