Ключевые слова: animal, april, aquatic, blue, bug, close, closeup, common, copulation, coupling, england, environment, float, gerridae, gerris, group, hemiptera, heteroptera, insect, lacustris, lake, lepidoptera, light, mating, nature, pairing, paradox, pond, river, row, sea, skater, skim, skimmer, skipper, small, spider, strider, surface, tension, tread, walk, water, waterbug, waterstrider, wave, wildlife,