leech on the tweezers. bloodsucking . subclass of ringworms from the belt-type class. hirudotherapy

aid alternative ancient animal annelid annelida belttype blood bloodletting bloodsucker bloodsucking care class closed crabs dangerous detoxification disgust doctor education glass healing health healthy hemolymph hermaphrodite hirudo hirudotherapy illness invertebrate jar leech leeching medical medicinal medicine microbiology nature parasite parasitic physic procedure relief research ringworms science segmented skin subclass sucker therapy tweezers water wet worm zoology