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 ...

Other mussels can jump up and clamp onto a fish’s face to expel their larvae onto its gills. • Worldwide there are 890 known freshwater mussel species, and 302 of those live in North America.

The Texas mussels face an array of threats, including degraded water quality, increased sedimentation of their habitat, and changes to the flows of rivers and streams due to diversions and development ...