After decades of going unnoticed, Shedd Aquarium scientists find Morgan Shoal, submerged 300 feet off the Chicago shoreline, is packed with life.

University of Montana scientists embark on an investigation of young lakes in Glacier National Park’s Sperry Basin to learn how freshwater food webs form.

In a first-of-its-kind study, investigators with the Minnehaha Creek Watershed District apply a copper-based pesticide to zebra mussels in Lake Minnetonka.

In Tennessee’s Craighead Caverns, The Lost Sea is the second largest non-subglacial underground lake in the world.