The nematodes (/ ˈnɛmətoʊdz / NEM-ə-tohdz or NEEM-; Ancient Greek: Νηματώδη; Latin: Nematoda), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad …

Dec 18, 2025 · 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 …

1 day ago · Nematodes, commonly called roundworms or eelworms, are unsegmented, cylindrical invertebrates that belong to the phylum Nematoda. They are among the most widespread and …

Nematodes have been reported from every continent on earth and occur in deserts, swamps, the oceans, the tropics and Antarctica. Usually nematodes are invisible to all but a few specialists …

Oct 15, 2025 · Nematodes are everywhere: in soil, compost and even inside humans. See how these microscopic worms help and harm ecosystems.

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 …

Nematodes are formulated and applied as infective juveniles, the only free-living and therefore environmentally tolerant stage. Infective juveniles range from 0.4 to 1.5 mm in length and can be …

Approximately half of the world’s human population is infected with gastrointestinal nematodes: about 3.5 billion cases, of which 450 million, mostly children, are seriously ill. Approximately 8–15% of crop …

Roundworms (nematodes) are bilaterally symmetrical, worm-like organisms that are surrounded by a strong, flexible noncellular layer called a cuticle. Their body plan is simple.

Jul 23, 2025 · Nematodes are unsegmented roundworms, one of the most abundant animal groups on Earth. Found in virtually every corner of the planet, they are often unseen due to their small size.