
TICKS
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Ticks inject anesthetics so that you don't feel anything.
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Ticks inject anticoagulants so that the blood will keep flowing where they are biting and it doesn't clog.
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Ticks inject antihistamines so that you don't feel the itch when they bite.
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Ticks inject molecules that fight your immune system so you are immune-suppressed where they bite you.
For more information about ticks, please read this http://www.cnn.com/2017/09/15/health/tick-museum/index.html
