Worms in the stool: This is not something you'll always see, but if your puppy has so many worms that they're visible in the stool, he or she should be taken care of immediately.

Hammerhead worms are an invasive species and pose a real environmental threat. Here's what to do if you find one.

Invasive hammerheads worms have been spotted in several U.S. states. Are they dangerous? Here's what experts say you should do if you see them.

Hammerhead worms are invasive and experts say you should kill them if you spot them. This is what to do.

Multiple types of parasitic worms can be passed from dogs to humans, including roundworms and hookworms. Practicing good hygiene is the best way to prevent worms from spreading. If you suspect your ...

Hammerhead flatworms — an invasive pest that looks like a cross between a hammerhead shark and a leech — have been spotted in the Washington, D.C., area and across the United States. Experts say the ...