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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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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Dolphins have names for one another.
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When dragonflies mate, their tails form a love heart.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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