Turtles have been around for more than 200m years, and can be found almost everywhere on the planet. Yet, they are surprisingly uniform and many species around today are facing an uncertain future – at risk from trade, habitat destruction and the climate crisis. Looking at a new study investigating the evolutionary history of turtles, Age of Extinction reporter Phoebe Weston talks to Prof Bob Thomson about what his work can tell us about the factors shaping their diversity and how we can support turtles’ dwindling numbers. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>
