Leo Houlding is a world-class climber and adventurer, veteran of a score of epic ascents including Everest. But he specialises in free climbing – i.e. without ropes – and helped pioneer para-alpinism – climbing up and flying down. In the last episode of the current series, Ed talks to Leo about...

Geoff Holt MBE had sailed across the Atlantic Ocean 3 times and sailed over 30,000 nautical miles, before breaking his neck in 1984. Geoff has been a quadriplegic ever since and became the first disabled yachtsman to single-handedly sail around Great Britain in 2007. He talks to Ed Stafford about...

Ella Al-Shamahi is a National Geographic explorer, paleoanthropologist, evolutionary biologist and stand-up comic. Ella also hosted Neanderthals - Meet Your Ancestors and Body Clock: What Makes Us Tick? on BBC Two and in this episode of Dangerous Minds, she discusses nature, evolution and her own...