When cats are happy, they may squeeze their eyes shut.
10
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10