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

alternative ancient animal annelid background belttype bite black blood bloodletting bloodsucking care class closed dangerous disease disgust doctor fluke glass healing health heparin hermaphrodite hirudotherapy hospital illness invertebrate jar leech leeching medical medicinal medicine nature paraphyletic parasite parasitic physic plastic procedure ringworms science skin specimen subclass sucker tentacle therapy tweezers water wet wildlife worm zoology