Los Angeles, June 18 -- Hollywood star Ryan Reynolds has turned narrator for docu-series 'Underdogs'. As per a press note, the National Geographic docu-series "celebrates the unique behaviors of the animals."

On working on 'Underdogs', Ryan said, "Getting to work with National Geographic on UNDERDOGS was a dream come true--mostly because I can finally watch a project of ours with my children. Technically, they saw 'Deadpool & Wolverine' but I don't think they absorbed much while covering their eyes and ears and screaming for two hours."

He added, "We're so proud to elevate the unsung heroes of the natural world to the top of the entertainment food chain and can't wait for everyone to see."

Each episode of the five-part series showcases...