
Episode 4 Preview
Preview: Episode 4 | 30sVideo has Closed Captions
At the planet’s frozen extremes, animals can reveal the changes taking place.
At the planet’s frozen extremes, shifts in animal movement and behavior reveal vital information about our future world. Examine polar bears in the Arctic, penguins in Antarctica and other animals surviving in icy worlds.

Episode 4 Preview
Preview: Episode 4 | 30sVideo has Closed Captions
At the planet’s frozen extremes, shifts in animal movement and behavior reveal vital information about our future world. Examine polar bears in the Arctic, penguins in Antarctica and other animals surviving in icy worlds.
How to Watch Evolution Earth
Evolution Earth is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
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Evolution Earth
Traveling to the far corners of the world, we discover the extraordinary ways animals are adapting to our rapidly changing planet. We witness nature’s remarkable resilience, as our perception of evolution and its potential is forever transformed. Read these interviews with experts to learn more.Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipShane Campbell-Staton: "Evolution Earth: Ice."
♪ When nature is on the move... ♪ showing us changes we can't see on our own... ♪ out there, things aren't what you expect.
You'll see.
Arctic Foxes Compete with Red Foxes
Video has Closed Captions
Red foxes are moving further north following the encroachment of the tree line. (3m 19s)
The Impact of the Broad-tailed Hummingbirds' Migration
Video has Closed Captions
billy barr tells us the lilies emergence is out of sync with the hummingbirds arrival. (7m 35s)
Preserving the Tundra with Reindeer
Video has Closed Captions
Reindeer are playing a crucial role in preserving the tundra by eating forest vegetation. (7m 37s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorship