Sea otters hold hands while sleeping so they don’t drift away from each other.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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Kissing an infection-free partner is good for your teeth!
141
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
The single biggest predictor of love is proximity.
30
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27