Hold on to your binoculars, folks, as Nat Geo gets up close and personal with the outcasts of the animal kingdom in UNDERDOGS, narrated by Ryan Reynolds. From their hidden talents to their unconventional hygiene choices to their unsavory courtship rituals, UNDERDOGS celebrates the unique behaviors of the animals who don’t usually get to be the stars of the show. From Reynolds’ Emmy® Award-winning Maximum Effort and Emmy and BAFTA Award-winning Wildstar Films (a Fremantle company), NationalGeographic’s UNDERDOGS premieres June 15 at 9/8c, simulcast on ABC, and will be available to stream the next day on Disney+ and Hulu. Each episode of the five-part series showcases a different aspect of the underdogs’ bizarre mating strategies, surprising superpowers, deception, dubious parenting skills and gross-out behaviors. UNDERDOGS features a range of never-before-filmed scenes, including the first time a film crew has ever entered a special cave in New Zealand—a huge cavern that glows brighter than a bachelor pad under a black light thanks to the glowing butts of millions of mucus-coated grubs. All over the world, overlooked superstars like this are out there 24/7, giving it maximum effort and keeping the natural world in working order for all those showboating polar bears, sharks and gorillas.