Quote Originally Posted by Spartiate View Post
Hmmm, this got me thinking... If ever there is a mass extinction (like only rats or cockroaches or bacteria survive), would evolution repeat it's course with humanoids? Would sencsient creatures ever make a reappearance on this planet?
I cant say for sure if there would be another human type species (i doubt it though) but its true that mass extinctions are responsible for population explosions in lesser species like the way mammals took over from dinosaurs.

Another good example is the Permian mass extinction which wiped out 90% of life but in the aftermath not only did life repopulate but spieces variation increased massively so who knows the next time it happens we may get a load of new life forms.