The Truth Behind New York’s Invasive and Toxic Worm

There's a toxic predator in New York... but is the problem really as serious as media outlets would lead us to believe?

While the term "invasive" rightfully sets off alarm bells for many New Yorkers, it can be important to understand how invasive. The massive influx of spongy moth caterpillars earlier this year, for instance, posed a serious threat to many local trees... but what about a predatory worm?

Invasive Hammerhead Worm in New York State

The hammerhead worm is an invasive, toxic, predatory flatworm that has recently made a splash in New York State. While there has been a huge uptick in coverage on the species (below), which is known to hunt helpful earthworms, some scientists say the problem could be blown out of proportion.

How Dangerous Are Invasive Hammerhead Worms in New York?

Adjectives like "toxic" and "predatory" sounds serious, but some researchers say that there hasn't been enough evidence collected about the species to suggest rising population levels or a significant effect on local wildlife.

Lack of Research on Hammerhead Worms

The lack of research also means that there is no way of knowing if the hammerhead worms are "new" in New York, or if they have been in the state for decades. The same goes for whether or not the populations are spreading across the country. Either way, there are still safety precautions to observe.

Safety Precautions for Toxic Hammerhead Worms

The hammerhead worm contains tetrodotoxin, and while the toxin cannot be absorbed through the skin, experts say gloves should still be worn if handling the worm as the toxin could still enter the body through a cut or by inadvertently touching your eyes or mouth.

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The New York State Department of Environmental Conservation (NYS DEC) is constantly monitoring activities of invasive species as well as threats of potential newcomers like the hammerhead worm. Check out more invasive plants and animals in New York State below.