“Freshwater fishes face extreme challenges associated with human activities in and near water,” says Suzanne Gray of CFAES’s School of Environment and Natural Resources. She’ll talk about those challenges, and how fish respond, in “Fish Biodiversity in a Changing World” today (April 3) at 4 p.m. It’s based on her research wading (literally) through degraded freshwater habitats in North America and Africa. Also included will be details on two new water conservation projects for children in Uganda and in Ohio’s Muskingum County. (Photo: Bull trout, a threatened species, in British Columbia by Joel Sartore, USFWF.)