Nearly all animals referred to as worms are invertebrates, including earthworms, and by definition, invertebrates do not have bones. Exceptions include worm lizards, such as the Caecilians and Anguis lizards, which look ... More »

Clam worms eat a variety of worms, algae and other intertidal invertebrates. A clam worm uses its proboscis to grab prey and bring it to its mouth. More » Pets & Animals Bugs Worms

Platyhelminthes, or flatworms, eat worms and other animals that are smaller than they are, including single-celled animals and tiny mollusks. Some flatworms are cannibalistic. They also eat bacteria and algae. More »

According to Encyclopædia Britannica, flatworms are mostly parasitic, soft-bodied invertebrates that include tape worms, flukes and planarians. Lacking circulatory, respiratory and skeletal systems, flatworms feature uns... More » Pets & Animals Bugs Worms

A flatworm is any member of the phylum Platyhelminthes, which is a group of flattened invertebrates that have soft bodies. There are different species of flatworm, but 80 percent of them are parasitic. This means that mo... More »

Flatworms, roundworms and segmented worms are actually examples of three very different species of worm, with the only major similarity between all three being that they are all classified as worms. Some species do share... More »

The tiny red worms in your pond are more than likely bloodworms. They are the first stage of life of the midge fly and are actually very beneficial to your pond, especially if you are raising fish. More »