invasive species

The costs of invasive species have quadrupled every decade since 1970, according to the UN.

The Italian government has allocated 2.9 million euros ($3.1 million) to fight the invasion of devastating shellfish harvests

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.

Hammerhead flatworms are an invasive species that are destroying earthworm populations across the U.S. Here’s everything you want to know about the pest and what you should do when you find one.