Ключевые слова: animal, biology, bodies, body, brown, burbot, catch, cod, crawling, curved, diving, eel, evening, extraction, fins, fish, fishing, flexible, freshwater, gills, gloves, grass, hake, hands, head, hold, jaw, long, lota lota, male, masking, moustached, mucous, nocturnal, northern, predator, protective, river, serpentine, slimy, slippery, spotted, spotty, sunny, tentacle, trophy, two, vertebrate, water,