For years, land flatworms were thought to spread mostly through plant sales. Worms or their eggs would hitch a ride in potted soil, move through nurseries, and end up in new gardens. That explained ...

When a cat owner in southern France noticed a slender, striped worm clinging to her pet’s belly fur after an evening outdoors ...

If your dog or cat spends time outdoors, here’s something that might make your skin crawl — but shouldn’t make you panic. Researchers have confirmed that invasive flatworms can hitch rides on your pet ...

Last spring, scientists with UC Riverside’s department of nematology discovered the parasite Heterobilharzia americana, a flatworm commonly known as a liver fluke, along the banks of the Colorado ...

A dog-killing parasite that was believed to only exist in Texas and other Gulf Coast states has been discovered as far west as California for the first time, scientists have warned. The worm can cause ...