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Evolution Earth

Arctic Foxes Compete with Red Foxes

Red foxes are moving further north following the encroachment of the tree line.

Aired 09/27/2023 | Rating NR

Evolution Earth

Arctic Foxes Compete with Red Foxes

Clip: Episode 4 | 3m 19sVideo has Closed Captions

Red foxes are moving further north following the encroachment of the tree line.

As the climate warms, the boreal forest is advancing further north. With the tree line comes the red fox a competitor of the high Arctic specialist, the Arctic fox. The trees advances aren't just a problem for the Arctic foxes but for the planet as a whole, the darker tree cover absorbs more heat and decrease the albedo effect which further warms the planet, causing the cycle to start again.

Aired 09/27/2023 | Rating NR

Episode 4 Preview

Video has Closed Captions

At the planet’s frozen extremes, animals can reveal the changes taking place. (30s)

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)

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