Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
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If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
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The largest earthworm on record was found in South Africa and measured 22 feet.
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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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There's a lizard known as the 'Jesus Lizard' that can run across water.
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Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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