Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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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
When dragonflies mate, their tails form a love heart.
22
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10