Ключевые слова: amphibian, amphibians, amplexus, animal, arvalis, blue, bluish, brown, closeup, conservation, couple, cute, europe, fauna, female, frog, frogs, head, macro, male, mating, moor, moorfrog, natural, nature, netherlands, pond, portrait, rana, ranas, ranidae, reproduction, science, season, semiaquatic, spawn, spawning, spring, summer, tadpole, two, water, weather, wet, wetland, wild, wilderness, wildlife, young,