There are very few of these long-lived Pokémon in the wild and these few live around jungles near mountains. Their jaws are powerful enough to break boulders and the cannon-like organ in the backs of their mouths can channel their draconic energies.
Thanks to its gargantuan jaws, which could shred thick metal plates as if they were paper, it was invincible in the ancient world it once inhabited. This ancient bug Pokémon was altered by Team Plasma.