"That's how they multiply!" Officials warn public amid ongoing spread of toxic 'hammerhead worm': 'Don't squish or cut them' ...

Thanks to the half-moon shape of their heads, hammerhead worms are known by many names, including hammerhead flatworm, arrowhead flatworm, and broadhead planarian (a category of flathead worms).

Jared was paddling early one morning when he saw a fin approaching. It was the start of a remarkable encounter.

Hammerhead worms are an invasive species, and they have recently been spotted in Ohio. The Ohio State University Extension in Trumbull County warned residents earlier this month that a homeowner had ...

A critically endangered great hammerhead shark washed ashore an Alabama beach a week ago, with a subsequent investigation finding the shark was pregnant with 40 pups. The City of Orange Beach Coastal ...

ST. PETERSBURG, Fla. (WFLA) — A hammerhead shark was caught chasing tarpons eerily close to beachgoers in St. Petersburg on Thursday, just a day before three people were hurt in two separate shark ...

A South Carolina angler caught a huge, 1,000 pound hammerhead shark and released it back into the water. Chip Michalove, who owns fishing charter company Outcast Sport Fishing, had been out with ...