Two dogs were among the Titanic survivors.
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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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Bats sleep 18-20 hours per day.
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Dolphins have names for one another.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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