Professor Richard Fortey looks at how some species survived the ice age which began 2.8 million years ago, triggered by changes in the Earth's orbit around the sun.
20-09-2014
BBC 4
Richard Fortey looks at how some species survived the catastrophic asteroid collision 65 million years ago that saw the end of the reign of the dinosaurs.
13-09-2014
BBC 4
Richard Fortey travels to find the survivors of mass extinction events. He focuses on a series of cataclysms over a million-year period 250 million years ago.
07-09-2014
BBC 4