Things that possess the potential to change. Even humans who appear to have never learned or grow change in subtle ways that are unknown to a cursory glance. Humans are ever changing, ever evolving, depending on their environment and circumstances.

Monsters? Born monsters? What are their goals? Devour, destroy, fulfil base instincts, instead of breaking past their limits to achieve something more! They do not change, their goals and methods remain the same, they give no thought to the evolution of the soul...

Offensive.