Take life on Earth, for example. Now, it's possible, or probable even, that impacts on a colossal scale changed the climate so much that huge swathes of life on Earth were wiped out, creating ecological niches into which other species could evolve -
Entón, é posible, mesmo probable, que os impactos a gran escala cambiaran o clima tanto que vastas áreas de vida na Terra fosen extinguidas, creando nichos ecolóxicos en que outras especies puideron evolucionar;