Description The nonfiction graphic novel series that explores the flora and fauna of pre-historic Earth After the dinosaurs died out, Earth was by no means empty.
There were still some little resourceful critters around who, without big predators to hunt them down, survived and thrived.
Who were these scrappy creatures? Early mammals, our ancestors In the Cenozoic Era, mammals rose to dominance and spread over the globe, resulting in woolly mammoths, saber- toot.