By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
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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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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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Sharks, like other fish, have their reproductive organs in their chests.
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The most expensive cow in the world was sold in 2009 for $1.2 million.
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