Ponds! In this episode, Rustin and Aaron discuss how two different events drastically affected pond ecosystems in very different ways. Rustin opens with Mosquito fish. This species once commonly used for mosquito control has now become a widespread invasive species that has proven to cause more harm than good. Aaron follows with a piece on the sodic meadow bomb ponds. Learn how a miscalculated bombing from World War II accidentally created a new habitat for a threatened wetland.