Up Next
Back to Show
Evolution Earth
Arctic Foxes Compete with Red Foxes
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.
Support Provided By
Unlock with PBS Passport
55:05
Forgotten and overlooked, grasslands could hold the key to our planet’s survival.
Unlock with PBS Passport
55:25
At the planet’s frozen extremes, animals can reveal the changes taking place.
Unlock with PBS Passport
55:31
In the hottest places, species are going to extraordinary lengths to survive.
Unlock with PBS Passport
55:26
Remarkable island wildlife reveals insights into our rapidly changing planet.
Unlock with PBS Passport
55:26
Animals have a surprising story to tell about our rapidly changing planet.