Imagine finding a stray hair — then watching it slither away like a snake. Video of such a creature was shared this week on Facebook by the U.S. Fish and Wildlife Service, which identified the creepy ...

More than 90 percent of popular Southern California freshwater game fish sampled in a new study contained invasive worms ...

When most people think of worms, they imagine harmless garden creatures wriggling through soil. Yet, the world of worms is far more sinister. Some are terrifying predators, invasive parasites, or ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The evolutionary trick of parasitic worm that sneakily burrows into the ...

Roundworms, also known as nematodes, are a leading cause of parasitic infection worldwide, causing painful swelling, severe abdominal pain and even blindness. Now, scientists say that viruses carried ...