Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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One in five long-term love relationships began with one or both partners being involved with others.
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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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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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
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
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38