Question

how leech sucks the blood

Answer 1

When they are sucking blood they release an anaesthetic, which is the reason why you don't feel the leeches when they bite. They then use suction and mucus to stay on their host. Once they open up a bite wound they secrete an anti-clotting enzyme called Hirudin into the bloodstream so that bloodwill keep flowing.



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Answer 2

When they are sucking blood they release an anaesthetic, which is the reason why you don't feel the leeches,when they bite. They then use suction and mucus to stay on their host.