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
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
Dolphins have names for one another.
18
One litter of kittens can be produced by more than one father.
57
When dragonflies mate, their tails form a love heart.
22
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11