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).

Stop, hammertime! Weeks of heavy rain have prompted a plague of massive, toxic hammerhead flatworms to erupt from the ground in North Texas, much to the chagrin of frightened locals. “It was ...

They’re long and skinny. They’re boomerang-headed and coated in toxic mucus. And they’ve been hiding in plain sight in the US for a long time. Invasive hammerhead flatworms have distinctive curved ...

A creepy-crawly invasive species known as the hammerhead worm is reappearing in Texas, following several weeks of excessive rainfall. The hammerhead worm, a ground-dwelling flatworm, is lethal to ...

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 ...

HAMPTON ROADS, Va. - Hammerhead worms are popping up all over Hampton Roads - they are carnivorous, cannibalistic and just plain gross. “They are very odd looking and eye catching, they are flat and ...

They rank pretty high on the ick factor with their skinny bodies and weird half-moon shaped heads, they're predatory and they are coated with a toxic slime. And they are in East Tennessee. Hammerhead ...

WASHINGTON — Earthworms, as we know, are garden champions, cleaning the soil by eating their weight in organic matter every day and aerating it as they wriggle around, creating tunnels to ease root ...