“Hammerhead worms, they can’t bite, they can’t sting, but it’s a toxin that’s present on their bodies.” The head resembles a hammerhead shark, and the worm also has a stripe down it.

A state agency in Maine is warning residents about an invasive species that can sicken your pet. The Department of Inland ...

It might be Shark Week, but sharks aren't the only hammerheads to watch out for this summer. An invasive worm that packs the poisonous power of a puffer fish and the slithering stamina of a snake ...

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.

Known for a head shaped like a hammerhead shark, the worm is typically light honey colored with a darker collar and one to five stripes on its body, according to the Texas Invasive Species Institute.

Known for a head shaped like a hammerhead shark, the worm is typically light honey colored with a darker collar and one to five stripes on its body, according to the Texas Invasive Species Institute.