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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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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The Basenji dog is the only dog that is not able to bark.
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Tigers can see 6 times better at night than humans.
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Jumping fleas can accelerate 50 times faster than the space shuttle.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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