When it comes to dinosaur extinction, the working idea is what’s called the bolide impact. This is the hypothesis that a meteorite came to the surface of the Earth, hit the Earth and led to the ...

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 million to 230 million years ago in the Triassic Period, and went extinct ...

Dinosaurs ruled the Earth for millions of years, and even today they often rule the box office when great movies are made about them. When most people think of dinosaurs, they picture giants like the ...