two medical leeches Hirudo medicinalis on a white plate

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Photo credit: © Olga Ovchinnikova / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: alternative, animal, annelid, biology, bloodsucking, caucasian, health, hermaphrodite, hirudo, hirudotherapy, invertebrate, leech, medical, medicinal, medicinalis, medicine, parasite, parasitic, science, skin, spa, sucker, tentacle, therapy, treatment, wet, worm