Spiny water flea is a little crustacean that's causing a big problem for native wildlife. This unique looking non-native invasive creature is interrupting the food web from the bottom up. It devours the microscopic organisms that small fish depend on. Bigger fish, turtles, and birds, rely on a diverse population of smaller fish. This problem not only affects animals but the people that enjoy viewing wildlife. Voyagers National Park, in northern Minnesota, is working to keep this invading creature out of its lakes for the health of the environment and the enjoyment of future generations.