Did Early Mammals Coexist Peacefully With Their Dinosaur Overlords?
You probably grew up thinking of dinosaurs as the undisputed rulers of the Mesozoic world, with small furry mammals cowering in burrows and scurrying through the underbrush just to survive another day. That’s the story many of us learned in school. Here’s the thing, though: the fossil record keeps throwing us curveballs that challenge this ...












