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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Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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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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Cats recognise the voice of their owner, but never evolved to care.
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An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
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