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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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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The reindeer is the only mammal that can see UV light.
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
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