When dragonflies mate, their tails form a love heart.
22
'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.
255
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Two in five people in the world marry their first love.
270
In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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Wearing red increases attraction.
30
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.
464
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104