Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. In this episode, we'll explore the mysterious "Lake of Blood" and some scandalous interspecies dating!

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. In this part, we explore the mysterious "cow tracks" found throughout the Alps in stone. These are, in fact, ancient fossils from the time when this mountain range was an ocean floor.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. Here we see the female perch defending her spawn from North American crayfish, and look at the role of glaciers in storing Alpine water.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. Here we see the effects of global warming, from the melting ice on the mountains to the caves of Slovenia.

Alpine Lakes, a nature documentary, leads us into the fascinating world of deep mountain lakes. As snow covers the mountains, mammals and fish alike fight for survival.

Alpine Lakes, a nature documentary, leads us into the fascinating world of deep mountain lakes. When winter comes and the lakes freeze over, the fish under the thick ice cover have different ways of passing the time.

Just before the Bundestag vote over longer running times of nuclear power plants, Greenpeace activists have occupied the roof of the CDU headquarters in Berlin. They hung up a ten-meter-long banner. Copyright: Deutsche Presse Agentur [The German Press Agency]

The UNESCO World Heritage site Messel Pit is one of the excavation sites that yields the largest number of fossils worldwide. Professors as well as students split the slate in order to find well preserved fossils.

In Switzerland, a new superhero has entered the fray to fight pollution and protect the environment. It's Battery Man to the rescue!

Winter has finally hit Berlin, causing traffic chaos and a lot of complaining from the locals, but actually some people seem to prefer the snow! (video copyright dpa)

In this video, Paula gives a presentation about the federal state of Brandenburg, which entirely surrounds Berlin. Enjoy!

Today we're going to show you how to prepare Brandenburg stewed cucumbers! The "Schmorgurke" is a coarser and knobbier cucumber that is found in Germany, but you can use any cucumber you have at your disposal. Traditionally, this dish is made with bacon and milk, but you can also use almond milk and vegan margarine and leave out the bacon. Guten appetit!

The federally supported research project „Tomatenfisch" breathes life into the concept of sustainability. Integrating fish and vegetable gardening in the city center makes economic, ecological, and social sense. For years a subject of research, it's now on the verge of market viability. Sehr interessant!

Land is used in different ways in Germany: for housing, commerce and industry, agriculture, transport, or nature reserves. Different parties have conflicting interests when it comes to deciding what to build where. This is where spatial planning comes into play…

WARNING: this video contains graphic footage of animals being treated brutally, the reason in fact that singer Cassandra Steen has volunteered to make this statement for the PETA (People for the Ethical Treatment of Animals) anti-fur campaign.