The giant Japanese salamander is a flat brown nocturnal amphibian with spotted skin that is covered in mucus, they have an extremely fast bite and rarely leave the water, they can get to a length of 1,80 meter or just 30 cm, they can live 100 years and every individual has different spots, they eat crabs and fish, they go upstream to mate and the males protect the nests, they look slow but can cross large distances with time.