Ключевые слова: agile, aigenerated, aquatic, australian, beak, bill, bill sensitivity, burrows, camouflage, carnivorous, conservation, dig, duckbilled, egglaying, electroreception, fur, habitat, lakes, mammal, migration, monotreme, nocturnal, paddle, platypus, predator, prey, rivers, scalloped, secretive, semiaquatic, sensory glands, shy, sleepy, spurs, strange, streams, unique, venom, venomous, webbed, webbed feet, wetlands, wildlife,