When dragonflies mate, their tails form a love heart.
22
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Kissing an infection-free partner is good for your teeth!
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A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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The single biggest predictor of love is proximity.
30
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81