Gyarados's fangs can crush stones and its scales are harder than steel. The process of evolution causes a change in its brain structure that is believed to cause its violent nature. Gyarados's tail fin is similar in structure to the crest on its head, except with a thin, white fin spread between the points. It has small, red eyes, a three-pointed, dark blue crest on its head, and four white, spiky dorsal fins. The barbels are white on a female and blue on a male. It has one pair of barbel and a small white fin on each side of its face. Its mouth is very large and gaping, bearing four pointed teeth and yellow lips. It is mostly blue with a yellow underbelly, and it has a row of yellow spots down each side. Gyarados is a piscine, draconic Pokémon with a long serpentine body covered in slightly overlapping scales. Gyarados can Mega Evolve into Mega Gyarados using the Gyaradosite. It evolves from Magikarp starting at level 20. Gyarados ( Japanese: ギャラドス Gyarados) is a dual-type Water/ Flying Pokémon introduced in Generation I.
Pokémon Brilliant Diamond and Shining Pearl.