Hey! So one thing we have been talking about in class for the past couple days, is whether dinosaurs or mamamals have been existing on Earth long. It feels like there is some confusion, so I am here to clear it up for everyone!!
Mammals have existed longer than dinosaurs. While they both evolved around the same time, dinosaurs clearly no longer exist, and mammals do. So mammals have existed longer. During the Jurassic Period, mammals existed but they were smaller, and lived in the shadow of the dinosaurs that dominated during that time period.
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When did dinosaurs first appear though??
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