Ключевые слова: alternative, anatomy, ancient, animal, biology, blood, bloodsucker, bloodsucking, countries, disgust, doctor, forceps, health, healthcare, hermaphrodite, hirudotherapy, insects, invertebrate, laboratory, leech, macro, magnification, medical, medicinal, medicine, nature, parasitic, physic, pincers, pollution, relief, science, sucker, tentacle, therapy, tweezers, wet, worm,