Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
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Dolphins have names for one another.
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Raj from the Big Bang Theory is married to Miss India.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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When cats are happy, they may squeeze their eyes shut.
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Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
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Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
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