Alva Review-Courier -

MATEWAN, W.Va. (AP) — Researchers trying to save endangered crayfish during bridge construction in southern West Virginia ended up discovering new tricks to increase the population, the Charleston Gazette-Mail reported.

In order to build a new bridge to carry a Norfolk Southern mainline over the Tug Fork River near Matewan, railroad officials had to work with the U.S. Fish and Wildlife Service to ensure construction wouldn't harm the federally endangered Big Sandy crayfish. The solution involved capturing crayfish from the river, holding them until all the work was done, and then releasing the...