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First they wait and when they sense a person passing by, they fall on the person. If they don't score a direct hit, they follow their victim. They poke the skin and then they bite it with their teeth and they have lots of teeth! Then they suck the blood until their full. Some leeches help people in hospitals by sucking the blood. The wound lets in fresh oxygen and saves the victim.

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14y ago

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Do leeches make good pets?

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