Giant camels once roamed Canada's High Arctic - much further north than previously believed - and may have evolved their flat feet and humps as a result.
Scientists have for the first time discovered complex organic molecules that have survived fossilization, in the form of 350-million-year-old sea creatures found in Ohio, Indiana and Iowa.
You may not have noticed, but according to an Australian academic, we're currently in the middle of a mass extinction event comparable to that which killed off the dinosaurs.