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
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
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").
-2
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
Men who kiss their wives in the morning live five years longer than those who don't.
1k
Couples' personalities converge over time to make partners more and more similar.
235
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39