history of Cretaceous–Paleogene extinction research
... that over the history of Cretaceous–Paleogene extinction research, scientists have attributed the demise of the dinosaurs to their large size, small brains, or, more likely, an asteroid impact ?
... that over the <b id="mwBXQ"><a href="./Timeline_of_Cretaceous–Paleogene_extinction_event_research" id="mwBXU" rel="mw:WikiLink" title="Timeline of Cretaceous–Paleogene extinction event research">history of Cretaceous–Paleogene extinction research</a></b>, scientists have attributed the demise of the <a href="./Dinosaur" id="mwBXY" rel="mw:WikiLink" title="Dinosaur">dinosaurs</a> to their large size, small brains, or, more likely, an asteroid impact <i id="mwBXc">(pictured)</i>?