When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Historically, sweat has been an active ingredient in perfume and love potions.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Speed dating was invented by a Rabbi in 1999.
45
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104