In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
When cats are happy, they may squeeze their eyes shut.
10
Some British police cars carry a teddy bear to console children after an accident.
46
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Sea otters hold hands while sleeping so they don’t drift away from each other.
104