Pokémon has 493 (as of Pokémon Diamond and Pearl) distinctive fictional species classified as the titular Pokémon. These creatures and entities reside throughout various locations of the fictional Pokémon universe and can be caught by humans designated as Pokémon Trainers often using devices called Poké Balls. These trainers use Pokémon for a variety of purposes, such as being pets and loyal companions and/or being pitted against other trained Pokémon in competitive Pokémon battles. Pokémon are potentially super-powered creatures that can employ a variety of talents such as generating fire or heat, martial arts, telekinesis, and so on. Through age and experience many of these species undergo a metamorphosis and transform into a similar but stronger specie in a process referred to as Pokémo