Diving ducks tend to live in deeper bodies of water ... (Mergus merganser), known as the Goosander in England, lives in freshwater lakes and is, as its name suggests, the most common species ...

Zebra mussels are small, fingernail-sized mussels native to the Caspian Sea region of Asia. They were discovered in Lake St. Clair (part of the Great Lakes) near Detroit in 1988. They are tolerant ...

We spent a day underwater to see how biological collection specialists are saving freshwater mussels one dive at a time.