As part of its ongoing efforts to promote every single Pokémon out there, The Pokémon Company has shared special content dedicated to Gyarados:
Did you know? It has an extremely aggressive nature. The Hyper Beam it shoots from its mouth totally incinerates all targets. Once it begins to rampage, a Gyarados will burn everything down, even in a harsh storm.
Source: The Pokémon Company
Source: Pokemon
