Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
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There are approximately three chickens for every human on Earth.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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