+**Leeches** are segmented [worms](/wiki/worms), often aquatic, characterized by their suckers. Many species are [parasitic](/wiki/parasite), feeding on the blood of other creatures. They have been used in [medicine](/wiki/medicine) for centuries due to their unique properties.
+## See also
+- [Annelida](/wiki/annelida)
+- [Hirudotherapy](/wiki/hirudotherapy)
+- [Suckers](/wiki/suckers)
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