Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Dolphins have names for one another.
18
A new born kangaroo is small enough to fit in a spoon!
7
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
One litter of kittens can be produced by more than one father.
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