Couples' personalities converge over time to make partners more and more similar.
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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
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
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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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14