Water Ecology in Rock Creek Park

Macroinvertebrates, spineless animals visible to the human eye, play a big role in water ecology. Snails, crayfish, mollusks, insect larva, and other squirmy wormies call Rock Creek their home. Stop by Peirce Barn to learn about the macroinvertebrates of Rock Creek Park, how pollution impacts them, and maybe even see them up close and personal.