We should thank the meteorite impact of sixty-five million years ago, shouldn't we?
It is said that a huge meteorite whose diameter is from 10km to 15km struck on the earth sixty-five million years ago. The meteorite impact swirled up dirt and dust, then the sky was covered with them. It caused cooling of the earth and all dinosaurs died because of it. If the meteorite impact had not happened, dinosaurs would have survived and human beings would not have emerged. In that case, dinosaurs may have developed like human and they could have their own civilization. Anyway, we are here thanks to the meteorite impact.
Corrected
What if the meteorite impact of sixty-five million years ago had not happened?
It is said that a huge meteorite whose diameter is from 10km to 15km struck the earth sixty-five million years ago. The meteorite impact swirled up dirt and dust until the sky was almost covered. It caused cooling of the earth and all dinosaurs died out because of it. If the meteorite impact had not happened, dinosaurs would have survived and human beings would not have emerged. In that case, dinosaurs may have developed like humans and they could have had their own civilization. Anyway, we are here thanks to the meteorite impact.