p7190066 aquatic dragonfly nymph epiprocta species eating a 3-spined stickleback fish gasterosteus aculeatus. delta, british

aculeatus america animal aquatic arthropod arthropoda british brown bug canada close closeup columbia creek detail dragonfly epiprocta fauna fish freshwater gasterosteus insect insecta invertebrate lake macro naiad naiads natural nature north nymph nymphs odonata photography pond predator predatory pretty river spring states stickleback stream submerged summer swamp swimming united white wild