Bruce Parry is a badass mofo. He’s the host of “Going Tribal,” a program airing now on Discovery that was originally produced for the BBC that’s sort of “Jackass” meets National Geographic. In the series, Parry, a former Royal Marine and expedition leader, treks to the globe’s most remote areas to learn about the world’s ancient tribes. His method of research: Live with the tribes and do everything they do. This means eating what they eat, sleeping where they sleep, smoking what they smoke. In some cases, it even means scarring or piercing yourself. The show and the tribes themselves are fascinating, as is the dedication of Parry. You will undoubtedly question your own bravery watching Parry rise to the challenges presented. Could you drink fresh cow’s blood? Eat live tree grubs? Pierce your septum with a sharp stick? The only thing to stop Parry thus far was the attempted inverting of his penis with the Kombai tribe of West Papua. During the process he got light-headed and nearly fainted, but short of this one minor misstep, Parry is unstoppable. Let’s see Steve-O try this shit. The show runs for six episodes on Discovery Channel, with new episodes running Tuesday nights at 10 p.m. ET/PT. You can preview some scenes here.