Where had the Dinos gone?

i think the dinos just have gone through a matter of time. they just became extinct maybe because they did not adopt themselves to the ever changing environment. i don't really know. i forgot what my teacher said about this on our bio class he he! if we still have dinosaurs now, maybe we can't have a modern life for dinos might destroy everything they see. it is their nature, maybe, i think, so we can't have the right to be mad at them.