The caution is twofold: the worms are invasive, and they are toxic. Now, they are not the kind of toxic that will kill a human. Some species of hammerhead worms produce a type of neurotoxin called ...

Common land planarians are easily identified by their triangular, spade-shaped head. Some can stretch out a foot in length.

The poisonous hammerhead worm is on the rise in Houston as Hurricane Beryl and extensive rainfall brings flooding to that ...

Researchers have spotted the hammerhead worm hundreds of times in the area of Washington, D.C. and northern Virginia over the last 15 years, the Washington Post reported. While a human would have ...