Produced by The World Wildlife Fund WWF. Anton Reyst travels to Hudson Bay in the north of Canada to get a firsthand look at the effects global warming has had on the landscape and wildlife there.

In old-growth forests, trees can grow, live, age, and die naturally, and thereby contribute to the ecosystem rather than being harvested in the prime of their lives. That's why the WWF has nature reserves in Germany where the old-growth forests of tomorrow can develop.

Switzerland is more than just a haven for nature and wildlife; it's also Europe's water reservoir. This visually captivating documentary showcases the aquatic ecosystems and diverse fauna of Valais.

Enjoy a magical journey through Switzerland's rugged wilderness. This is nature at its finest! In this clip you will learn some interesting facts about the glaciers, the wildlife, and the climate.

Part three of this mini-series features breathtaking winter scenes of the Alps and wildlife that includes foxes, chamois, marmots, and wolves.

In addition to wolves, badgers, and eagles, there are now lynxes roaming Switzerland once again!

What species can you encounter in the Swiss mountains in spring? How does the landscape change at different altitudes? Watch this clip to gain some wonderful insights into a unique natural paradise.

The Swiss wilderness boasts a variety of climate zones, flora, and fauna. There are raccoons, and at Lake Lugano, there are even some hoopoes.

In the fourth part of this series on the Swiss wilderness, we find ourselves at Lake Maggiore in southern Ticino. Here, there are enormous catfish and bright green tree frogs.

In the floodplain forests and swamps of the nature reserve, there is an abundance of beautiful and rare plants. The population of ibexes is also thriving once again.

In the second part about summer in wild Switzerland, we see golden eagles, marmots, and the rare Danube salmon. In particular, we get a good sense of the hard fight for survival in this beautiful paradise.

Along the Anterior Rhine, the day begins with feathers, fur, and fine fibers. Among bathing birds, furry newcomers, and artful nests, nature prepares for autumn—with guests who stay and those who only briefly linger.

Many forest dwellers are already preparing for the cold season. We see marmots and many rare bird species that make Switzerland a magnificent natural spectacle even in late summer.

Learn about various means of public transportation in Berlin. Gute Fahrt und viel Spaß beim Deutschlernen!

Lake Lucerne in central Switzerland is a large energy reserve that provides cold and hot water for individual and collective heating, cooling, and air conditioning needs in an environmentally friendly way. Find out more about how it works!