Characters can develop powers in many ways. Some can be bitten by radioactive creatures. Others are born powerful. Others get their powers through a suit of armor. Some eventually develop them out of natural selection.
- Doomsday became incredibly powerful by being killed and cloned, the records of his deaths being recorded in his genes until he was capable of surviving the harsh temperatures and predators of the world, as well as thrive on solar energy without needing to eat or breathe, and return to life and adapt to overcome what had felled him before.
- The Tyranids can adapt biomorphs to deal with their enemies/prey/victims.
- Various pathogens have adapted to resist drugs, such as MRSA and "Super AIDS".