Invasive species are organisms that become established in a new location and cause harm. The Chesapeake Bay region is home to a number of terrestrial and aquatic invasive species. Explore this learning lab collection to learn more about invasive species in the Chesapeake Bay. Want to dive deeper? Learn more about the invasion of the northern snakehead in the Chesapeake Bay through a classroom activity.  In this activity, you'll use genetic sequences to explore what they're eating in the Delaware Bay ecosystem. And explore different water quality parameters to understand more about the geography of where they are spreading.