MCSs of underwater insect larva holding tadpole in its pincers. Underwater MCSs of mayfly nymph. CS of nymph's deadly-looking pincers. MCSs of mayfly emerging from nymph. Shot of mayfly after emergence. Various shots of dragonfly emerging from nymph. Various shots of mature dragonflies perching on stump, clinging to marsh reeds and in flight among reeds.