The discovery is the first fossil of a freshwater smelt — a small, silvery fish — in the group Osmeriformes to have been ...

Many freshwater fish are highly endemic; the entire range of a species is often as small as a football field. When it’s gone, it’s gone. Other reintroductions have had, according to Chin, ...

Freshwater mussels, also known as clams, are unique animals. Mussels have two hard, external shells and soft tissue inside. They also have only one foot! The movement of mussels is limited. Most ...