Matthew McConaughey enjoys living on the edge and taking risks - including trying to eat reindeer testicles. In Us Weekly's exclusive clip from the Tuesday, April 21, episode of Fox's Bear Grylls Is Running Wild, McConaughey, 56, agrees to join Grylls for a surprising meal. Grylls, 51, tells McConaughey that the reindeer testicles "improved with cooking" before the actor tried a piece of the meat. "Can I have another piece, please? That is a hell of a lot better than I thought it would be," McConaughey says before making a joke about Rudolph the Red-Nosed Reindeer.