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 cats are happy, they may squeeze their eyes shut.
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Raj from the Big Bang Theory is married to Miss India.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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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.
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