Earth has been witness to mammoths and dinosaurs, global ice ages, continents colliding or splitting apart, comets and asteroids crashing catastrophically to the surface, as well as the birth of human
During a revolution of discovery in the late eighteenth and early nineteenth centuries, geologists reconstructed the immensely long history of the earth—and the relatively recent arrival of human life
Earth has been witness to mammoths and dinosaurs, global ice ages, continents colliding or splitting apart, and comets and asteroids crashing catastrophically to the surface, as well as the birth of h
