Rhydon

“Protected by an armor-like hide, it is capable of living in molten lava of 3,600 degrees.”

— Pokémon Red

“Walks on its hind legs. Shows signs of intelligence. Its armor-like hide even repels molten lava.”

— Pokémon Yellow

“Its rugged hide protects it from even the heat of lava. However, the hide also makes it insensitive.”

— Pokémon Gold