Bugs of the Underworld: The Natural History of Aquatic Insects (DVD)

This fascinating 35-minute DVD documents the amazing lives of aquatic macroinvertebrates such as mayflies, damselflies, midges, caddisflies, and stoneflies. Watch aquatic larvae and nymphs transform into winged adults. Learn how each species profoundly influences aquatic ecosystems and how their presence or absence can be used as a predictor of stream health and water quality. Recommended for ages 11 and up.