About 120,000 results
Open links in new tab
  1. Nematode - Wikipedia

    Parasitic worms (helminths) are the cause of soil-transmitted helminthiases. They are classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa. Unlike the …

  2. Nematode | Definition, Description, Diseases, & Facts | Britannica

    Jan 31, 2026 · Nematodes are among the most abundant animals on Earth. They occur as parasites in animals and plants or as free-living forms in soil, fresh water, marine environments, and even such …

  3. Nematodes Explained: The Good, the Bad and the Harmful

    Oct 15, 2025 · Plant-parasitic nematodes like the root-knot nematode cause an estimated $125 billion in global crop losses annually. However, the damage caused by nematodes that infect humans is far …

  4. Nematodes - Cornell University

    The nematode may appear as little more than a biological syringe for its bacterial partner, yet the relationship between these organisms is one of classic mutualism.

  5. What are Nematodes? - Department of Nematology

    A small fraction of all nematode species are parasites of humans, livestock or agricultural crops. Consequently, these have attracted the most attention from Nematology researchers.

  6. Nematodes - PMC

    The main panel shows the phylogeny of the major nematode groups, information about ecological range and presence of parasites (black bars indicate definitive hosts, grey bars intermediate hosts), and …

  7. Nematodes are the most abundant multicellular animals in the planet. Nematodes have colonized nearly every habitat on earth. Nematodes can exist in extreme environmental conditions. Parasitic …

  8. What Are Nematode Worms and What Do They Do? - Biology Insights

    Jun 28, 2025 · Nematode worms, also known as roundworms, are among the most abundant multicellular animals on Earth. These microscopic, unsegmented worms are found in nearly every …

  9. Plant Parasitic Nematodes : USDA ARS

    Plant-parasitic nematodes are recognized as one of the greatest threats to crops throughout the world. Nematodes alone or in combination with other soil microorganisms have been found to attack almost …

  10. Nematode overview | UC Agriculture and Natural Resources

    The four primary types of nematodes - ring nematode, root lesion nematode, root knot nematode and dagger nematode. Ring nematode. The fatter, short nematode is ring nematode, Mesocriconema …