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Zoology/leech saliva - anaesthetic


Helpful wrote at 2010-04-03 23:48:55
Actually, there is no anesthetic at all in a leeches bite, and most leech bites do hurt, and some actually hurt significantly. I have no idea why they don't hurt more, but there is NO anesthetic of any type in their bite.

Kevan wrote at 2015-02-01 13:55:43
I think the answer to the leech anesthetic question is that biosynthesis of anesthetic substances occurs in the host triggered by the injected biochemicals from the leech.


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Walter Hintz


I can answer questions about both vertebrate and invertebrate zoology. I am an expert in animal behavior, especially birds.


I have taught for over 50 years. I teach college biology courses and I have led tours to the Galapagos Islands and the Belize rain forest

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