About 38,700 results
Open links in new tab
  1. Leech - Wikipedia

    The leech appears in the biblical Book of Proverbs as an archetype of insatiable greed. [1] The term "leech" is used to characterise a person who takes without giving, living at the expense of others. [2]

  2. Leech | Annelid, Bloodsucking Parasite & Medicinal Uses | Britannica

    Feb 6, 2026 · Leech, (subclass Hirudinea), any of about 650 species of segmented worms (phylum Annelida) characterized by a small sucker, which contains the mouth, at the anterior end of the body …

  3. How to Remove a Leech: Steps, Treatment & More - Healthline

    Aug 20, 2021 · Learn how to safely and quickly remove a leech, as well as how to recognize a leech and when to seek immediate medical treatment.

  4. LEECH Definition & Meaning - Merriam-Webster

    The meaning of LEECH is any of numerous carnivorous or bloodsucking usually freshwater annelid worms (class Hirudinea) that have typically a flattened lanceolate segmented body with a sucker at …

  5. 8 Unique Characteristics of Leeches - Wildlife Informer

    In fact, they’re known as predatory worms because they attach themselves to animals and can cause death if too many are attached to one and remain connected for too long. There are, however, some …

  6. The Secret Life of Leeches, Blood-Sucking Aquatic Worms

    Oct 10, 2025 · Meet the leech, the misunderstood hero of aquatic ecosystems all over the world, who does not always suck blood!

  7. Leech - New World Encyclopedia

    The medicinal leech, Hirudo medicinalis, which is native to Europe, and its congeners have been used for clinical bloodletting for thousands of years. Some species of leech will nurture their young, …

  8. Leeches in the extreme: Morphological, physiological, and behavioral ...

    Leech classification is arranged so that families and genera tend to include members with similar ecological and physiological tolerances. Based on the sister group, Branchiobdellida or crayfish …

  9. Leech (Hirudinea) — EcoSpark

    Learn about the leech (Hirudinea spp.) benthic macroinvertebrate by exploring the life cycle, feeding habitats, interesting facts and its role in the food chain.

  10. Leech - Types, Size, Anatomy, Habitat, Diet, Lifespan, & Life Cycle

    Nov 7, 2025 · What are leech. Are they dangerous. Where & how long do they live. What do they eat. How do they reproduce. Learn their size, predators, & life cycle with pictures.