SYCAMORE ISLAND, SCOTT COUNTY — In the last rocky shoals of the Clinch River before it crosses the invisible line separating Virginia from Tennessee, female mussels are biding their time.  They are waiting for fish, and they will stop at nothing to entice them. The birdwing pearlymussel will deploy her mantle so that it looks … Continue reading Va.’s freshwater mussels are vanishing. Can a state plan save them?