Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Dolphins have names for one another.
18
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34