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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Condoms were originally made of animal intestines or linen.
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A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
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Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
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