Wherever you find dinosaurs, chances are that Dimetrodon is close by. The sail-backed creature is a staple of museum displays, boxes of sugar-saurus cookies, and sets of plastic dinosaurs, and I have ...

Take a close look and you might see a little bit of yourself. With its lizard-like appearance and that distinctive sail on it back, Dimetrodon is practically the mascot of the Palaeozoic Era, a time ...

Mass extinctions have radically influenced the history of life on Earth. Will we eventually succumb to such a catastrophe? Perhaps, but, in her new book Scatter, Adapt, and Remember, io9 editor in ...