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
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
44
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4