Mammal Takeover! (Earth Before Us #3) : Journey through the Cenozoic Era Subclass_Others - Education and consolidate what they have

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Mammal Takeover! (Earth Before Us #3) : Journey through the Cenozoic Era Subclass_Others - Education and consolidate what they haveAfter 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 toothed tigers, and eventually all of humankind. In this adventure, we meet the three kinds of