Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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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
Some British police cars carry a teddy bear to console children after an accident.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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When cats are happy, they may squeeze their eyes shut.
10
Sea otters hold hands while sleeping so they don’t drift away from each other.
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