During the Third Tiberium War there was almost no Tiberium life except human mutants, and a few creatures they kept. It is speculated that as Tiberium evolved it grew faster, and the cells of Tiberium lifeforms could no longer fight the spread of the crystal throughout their bodies. Human mutants, being able to control their own exposure to Tiberium and that of other creatures, managed to survive. Human mutants are not as "advanced" as other mutant creatures, and this may have played a role in their continued survival as well, since the more advanced the Tiberium life form, the more delicate the balance between too much and too little Tiberium exposure. Here is a list of the most advanced Tiberium life forms recorded.