Go behind the scenes of the stunning new series, Secrets of the Penguins, with acclaimed wildlife filmmaker Bertie Gregory as he shares untold stories from the field. Gregory recounts the immense challenges faced, the truly awe-inspiring wildlife encounters they witnessed, and the passion that cultivated this mind-blowing documentary series. Secrets of the Penguins is now streaming on @disneyplus and @hulu. https://on.natgeo.com/4cHzyFv Explore the World with National Geographic subscriptions: