Camerupt has a volcano inside its body. Magma of18,000 degrees Fahrenheit courses through its body. Occasionally, the humps on this Pokémon's back erupt, spewing the superheated magma.
The humps on Camerupt's back are formed by a transformationof its bones. They sometimes blast out molten magma. This Pokémon apparently erupts often when it is enraged.
