Deep within the dark caves of northeastern Mexico lives a fish that has spent hundreds of thousands of years adapting to a world without light. The blind Mexican cavefish (Astyanax mexicanus) has ...

For years, river restoration has followed a familiar script. Remove barriers where possible, reconnect fragmented waterways ...

For decades, river restoration has focused on returning waterways to conditions that existed before dams, weirs and ...

Editor's note: All opinions, columns and letters reflect the views of the individual writer and not necessarily those of the IDS or its staffers. We’ve all seen this poster in our middle school ...