Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
One litter of kittens can be produced by more than one father.
57