Aquatic insects are low hanging fruit for many creatures above and below the surface. Many of these predators are other insects, but also reptiles, amphibians, and birds. In order to protect themselves, many of these have great camouflage themselves, such as this mantis fly disguised as a wasp (below).
Michigan Rivers have a complicated and beautiful tapestry of life. In addition to great fishing, this makes them a very special place to visit.