Tigers can see 6 times better at night than humans.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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A cow produces around 200,000 glasses of milk in her lifetime.
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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
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Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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Cows can sleep standing up, but they can only dream lying down.
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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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