A Dangerous Move

Since the apocalypse, the one who was able to adapt could survive, and the stronger ones would be dominating the weaker ones. In this environment with such fierce competition, the creatures had to keep evolving for its survival. Not only should the predators evolve, but the various herbivores including plants would need to keep evolving to be stronger. The latter two would have to evolve even faster, as they face the harsh environment and was in more danger and pressure to survive.