Lumbricus terrestris, an earthworm White tentacles of Loimia medusa, a spaghetti worm Worms are many different distantly related bilateral animals that typically have a long cylindrical tube …

3 days ago · As part of a collaboration between WoRMS and Edaphobase, the World Database of Nematodes (Nemys) has been integrated as the official taxonomic backbone for Nematoda in …

Dec 13, 2025 · worm, any of various unrelated invertebrate animals that typically have soft, slender, elongated bodies. Worms usually lack appendages; polychaete annelids are a …

Of the thirty-odd phyla in the animal kingdom, at least a third are generally referred to as worms. If you include the more exotic, lesser-known phyla described as “worm-like,” it’s well over half. …

May 27, 2024 · Worms are one of the largest groups of invasive species in the world. With over one million species, the bilateral symmetry of their elongated bodies makes them easy to …

Jul 22, 2025 · Intestinal worms can appear in human poop. Parasites like pinworms, hookworms, and tapeworms can cause symptoms like stomach pain, vomiting, and diarrhea.

Worms vary in size from microscopic to over 1 metre (3.3ft) in length for marine polychaete worms (bristle worms); [1]6.7 metres (22ft) for the African giant earthworm, Microchaetus rappi; [2] …

Worms belong to the ‘annelid’ family along with leeches. There are over 3,000 different types of worm, some are so tiny you would not be able to see them under a microscope.

Enter the world of worms and read about various types, from earthworms to blood flukes, and find out how to avoid their parasitic cousins.

Worms are typically long, thin creatures that get around efficiently without legs. The different phyla of worms display a great range in size, complexity, and body structure.