Fat Bear Week Is Here: Watch These 5 Nature Documentaries to Celebrate - Netflix Tudum

  • What To Watch

    If Fat Bear Week Triggers Your Cute Aggression, Watch These 5 Nature Docs

    Sometimes the deadliest animals are also the ones you most want to cuddle.

    By Krutika Mallikarjuna and Caitlin Busch
    Sept. 22, 2026

If you’ve never heard of Katmai National Park’s Fat Bear Week, it’s your lucky day: Every year, the Alaskan nature preserve kicks off hibernation season with a March Madness–style bracket in which America votes for the fattest, cutest brown bear in the park, before all the bears trundle off for their annual slumber. Each glamorous contestant is photographed twice throughout the year: a lithe “before” picture in early summer, shortly after emerging from hibernation, and then a chunky “after” picture in September. In the time between, these already floofy Alaskan brown bears will bulk up by 30-50% to survive winter months in their dens. Be careful — they might look delightfully squeezable, but they’re still some of the deadliest predators around! 

For more glimpses of some of Earth’s sweetest, fiercest creatures, check out these visually stunning nature documentaries that will remind you not to get any closer than the TV screen. 

Animal

This two-season docuseries captures never-before-seen footage of the planet’s most astonishing creatures, offering rare glimpses into how animals form communities. The bears episode in Season 2 showcases how this massive predator is a lot smarter than it’s given credit for — after all, it takes brains and brawn to rule the world’s more hostile environments. The docuseries is narrated by Bryan Cranston, Rashida Jones, Anthony Mackie, Rebel Wilson, Andy Serkis, David Harbour, Uzo Aduba, and Pedro Pascal.

Animal
2 Seasons   TV-PG   2021
Watch

Night on Earth

Samira Wiley’s dulcet tones guide animal lovers on a journey most humans never get to see. Night on Earth uses high-tech cameras to capture some of the crispest, clearest footage of nocturnal animals in documentary history — for the first time, people get to see what animals truly do at night. From tree frogs in jungle nights to bear cubs in subzero temperatures, Night on Earth is an adventure you can’t miss.

Our Planet

Our Planet is narrated by the undisputed king of nature docs, David Attenborough. While Season 1 focuses more on the ecosystems of different environments — jungles, grasslands, oceans — Our Planet II focuses on the natural cycles of change. Polar bears are featured in Season 2’s migration episode (”World on the Move”) as well as the “Frozen Worlds” episode in Season 1.

Our Universe

This six-part series, narrated by Morgan Freeman, blends wildlife footage with near-magical, cosmic effects to tell the story of how everything in the natural world is connected. Hit play to get up close and personal with a cheetah sprinting across the Serengeti, penguins in the waters of the Southern Ocean, and, of course, an Alaskan brown bear guiding her cubs through their first experiences with the changing seasons. 

Predators

Narrated by Tom Hardy, the docuseries Predators follows some of the deadliest animals in the world — cheetahs, lions, polar bears, and more — as they battle the elements, other predators, and each other to survive. The polar bears of Canada’s Hudson Bay, in particular, highlight the damage humans have done to the planet and how climate change is forcing these beautiful animals to get creative in finding food sources.

Number of recommendations may vary by region.
Related Tags
  • Documentary
  • What to Watch
  • Article

Shop

Go to Netflix Shop

What To Watch

  • 23 Dating Shows to Get You Pumped About Love and Relationships
    Promising connections, steamy seductions, shocking breakups, and more.
  • Say “Hellur!” to the archive of the prolific director, writer, and actor.
  • It’s time to get your blood pumping.
  • Here’s your guide for streaming one scary movie every day of October.

Documentary

  • Plus Who Is Martin Mull?, Mojo Brookzz: I Know You Lying, Lorne, and more.
  • The filmmaker on the photographer who became the subject of his latest documentary.
  • Delve into stories about unforgettable victims, mysteries, and twisted minds.
  • Filmmaker Maite Alberdi on four years inside a story with no easy answers.
  • Stream East of Eden, Animals, a new season of The Diplomat, and more.
  • A must-watch collection of titles that don’t shy away from the dark.
  • The three-part doc features some of the people who loved the Friends star.
  • Plus LEGO ONE PIECE, The Arena, The Widower: 'Til Death Do Us Part, and more.

Related Videos

  • Take a closer look at our planet with these nature documentaries.
  • To understand life, we must go back to the beginning.
  • Penguins, polar bears and wildebeests, oh my!
  • Life is on the move.
  • Experience life's extraordinary journeys.

Latest News

  • WWE Money in the Bank 2026 Preview: Date, Match Card, Start Time, and News
    Two wrestlers in a crowded arena; one jumps with a knee strike toward the other inside a wrestling ring, surrounded by ropes, with fans watching and capturing the action on their phones in the background.

Popular Now

  • The actor doesn't just play Cathy Ames — she fights for her.
  • From exes and BFFs to parents and alums, here’s how everyone connects on campus.
  • Ella Beatty leads the latest installment of the Ryan Murphy anthology series.