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Emperor penguin chicks jump off a 50-foot cliff in Antarctica
National Geographic and BAFTA Award-winning cinematographer Bertie Gregory release unprecedented footage of Emperor penguin chicks leaping 50 feet off an Antarctic cliff. The never-before-filmed behavior was for the 2025 installment of National Geographic’s Emmy award-winning SECRETS OF franchise, SECRETS OF THE PENGUINS, premiering Earth Day 2025 on Nat Geo.
The film documents the arduous journey emperor penguins undertake every autumn.
Thousands of penguins leave the ocean to travel inland toward their traditional ancestral breeding grounds. This journey—and the subsequent months of incubation and chick-rearing—is defined by extreme environmental challenges: The Trek: Penguins walk up to 100 kilometers (approx.
62 miles) across the frozen, wind-swept Antarctic landscape. The Mating Cycle: Once they arrive, they engage in courtship, eventually laying a single egg.
The female transfers the egg to the male, who protects and incubates it under a fold of skin on his feet for two months while the female returns to the sea to feed. Survival: The males huddle together to conserve heat in temperatures as low as −62 °C (−80 °F) without eating for months.
The survival of the species relies on the precise timing of the parents' return and their ability to locate one another in the colony using unique vocal calls. Themes: The film explores themes of endurance, monogamy, parental sacrifice, and the brutal reality of survival in the harshest climate on Earth, often framing the penguins' struggle in humanized, emotional terms.
Filming
The production team spent over 13 months at the Dumont d'Urville Station.
Because the timing of the penguins' arrival at their breeding ground is not fixed, the crew had to be prepared to film daily. The documentary is noted for its lack of special effects, relying on raw, high-quality footage captured under extreme conditions.


