Disney has released new details and a trailer for the upcoming documentary series, “Secrets Of The Penguins”, which will be released on Disney+, Hulu and National Geographic for this years Earth Day.

The upcoming documentary is hosted by Emmy and BAFTA Award-winning Nat Geo Explorer Bertie Gregory.  It has been executive produced by National Geographic Explorer-at-Large and Academy Award-winning filmmaker James Cameron and Emmy and BAFTA winners Ruth Roberts and Martin Williams from Talesmith, this latest installment in National Geographic’s Emmy-winning “Secrets of” franchise takes viewers of all ages to the farthest corners of the world to witness penguin behaviors captured on film for the first time—showcasing the cute and fluffy flightless birds as they brave some of the most extreme environments on Earth.

While many documentaries have explored penguins, “Secrets Of The Penguins” takes it to a whole new level. Talesmith’s team, led by Bertie and over 70 world-class scientists and filmmakers, embarked on a two-year, globe-spanning adventure—from the rocky beaches of Cape Town and the icy shores of South Georgia Island to the tropical Galapagos and Namibia’s desert caves—capturing penguins like never before. Pushing the boundaries of wildlife filmmaking, a three-person crew endured an astonishing 274 days filming on the Ekström Ice Shelf in Antarctica, home to a colony of 20,000 emperor penguins. Facing one of the planet’s harshest environments, they captured never-before-seen moments like a bonded pair of emperors practicing egg transfers with a snowball to hone their skills for the moment they would need to transfer a real egg, tenacious chicks navigating brash ice amid climate change, and young penguins using their beaks to hoist themselves out of a crevasse.

With breathtaking, award-winning cinematography and cutting-edge camera technology, the series captures even more never-before-seen and rare moments in the wild. For the first time, witness healthy “rockaroni” chicks—a rare hybrid of rockhopper and macaroni penguins—offering a fascinating glimpse into potential evolution and adaptation. Other remarkable scenes include a brave rockhopper fending off a southern sea lion, the first-ever footage of a hidden cave colony of African penguins, and clever Galapagos penguins teaming up for a daring heist: stealing fish straight from pelican beaks and skillfully herding sardine bait balls.

Last year, Nat Geo unveiled breathtaking emperor penguin footage captured by Bertie at the Ekström Ice Shelf in Antarctica for the series. A television first, the crew recorded an astonishing sight: hundreds of emperor penguin chicks leaping from a 50-foot cliff into the icy ocean below, emerging unscathed. The series will showcase the full spectacle of this remarkable behavior, along with new footage that was not initially included in the viral video.

The family-friendly series taps into the passion and expertise of world-renowned scientists and conservationists, including National Geographic Explorer and marine biologist Dr. Pablo Borboroglu, conservation biologist Dr. Michelle LaRue, African penguin expert Dr. Andrea Thiebault, doctor of veterinary medicine Dr. Gustavo Jiménez Uzcátegui, penguin expert Dr. Jessica Kemper, and marine biologist Dr. Katta Ludynia.

Narrated by Blake Lively (“Another Simple Favor”), the three-part series premieres April 20th 2025 at 8/7c on National Geographic, with all episodes streaming April 21st 2025 on Disney+ and Hulu.   The show will also be broadcast on the Disney Channel on Earth Day, April 22nd 2025, at 8/7c.

Check out the trailer below:

Episodes include the following:

  • “Heart of the Emperors” – The emperors are the largest and strongest penguins, living in the coldest and most extreme environment on Earth. Embedded with an Antarctic colony, National Geographic Explorer Bertie Gregory encounters social skills never filmed before, discovering bonds forged from birth between family, friends and strangers are the difference between life and death.
  • “Survival of the Smartest” – Millions of years ago, a group of penguins left the ice, riding powerful currents and arriving in strange new lands. They reshaped traditions for deserts and tropics—and even to live among humans. Tested to the extreme, they became perhaps the smartest of all penguins. National Geographic Explorer Bertie Gregory discovers the penguins’ problem-solving, “talking” and enduring search for new worlds.
  • “Rebels with a Cause” – It takes a special type of courageous penguin to survive the fierce Southern Ocean, but 40 million crowd its isolated, rocky outposts, and they are some of the most successful penguins on Earth. National Geographic Explorer Bertie Gregory follows the rockhoppers, gentoos and macaronis to discover a world of risk-takers, rebels and unconventional parents.

Previous “Secrets of” seasons include “Secrets Of The Octopus”, “Secrets Of The Elephants” and “Secrets Of The Whales”, which are available to stream on Disney+ and Hulu.

“Secrets Of The Penguins” is produced by Talesmith for National Geographic. Emmy Award-winners James Cameron and Maria Wilhelm for Lightstorm Earth are executive producers. BAFTA and Emmy Award-winner Bertie Gregory serves as lead storyteller, cinematographer and producer. For Talesmith, Emmy and BAFTA-winning executive producers are Ruth Roberts and Martin Williams. Series producer is Serena Davies. Pam Caragol is executive producer for National Geographic.

Are you looking forward to watching “Secrets Of The Penguins”?  Let me know on social media!

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Roger Palmer

Roger has been a Disney fan since he was a kid and this interest has grown over the years. He has visited Disney Parks around the globe and has a vast collection of Disney movies and collectibles. He is the owner of What's On Disney Plus & DisKingdom. Email: Roger@WhatsOnDisneyPlus.com Twitter: Twitter.com/RogPalmerUK Facebook: Facebook.com/rogpalmeruk

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