Spring is a time when life in the stream comes alive. Macroinvertebrates are organisms that are big enough for you to see with the bare eye, but without backbones. Mayflies, water pennies, caddisflies, and stoneflies…scientists use these freshwater creatures as natural indicators of river health. In our water lab, act like a scientist to inspect and characterize your own virtual river sample. Do they have legs or shells? Are they “shredders”, “grazers”, or “collectors”? Learn all about these creatures during this family-friendly program.