The North Sea is an unpredictable and mysterious marine habitat, teeming with life. Join marine biologists Florian Graner and Natali Tesche-Ricciardi on an exciting adventure!

Florian and Natali finish a great first dive with the basking sharks and then make their way to the coast of Holland.

In this installment, the sea creatures in the Oosterschelde are busy spawning and the male cuttlefish prepare for mating battle.

Now Florian and Natali leave behind the Oosterschelde and take to the air! In this episode, we get a glimpse of the mud flats in the intertidal zone: home to friendly seals and a resting place for migratory birds.

Even though the catshark's rough skin makes it a less than ideal meal, this doesn't keep the hungry gray seal from trying. However, the seal takes time off from the hunt to make friends with the divers.

With almost no wind at all, the weather is ideal for Florian and Natali to join scientists from the Heligoland Biological Institute on a dive, where they observe porpoises and other marine animals in their protected habitat. Höchst interessant!

Because of its rocky subfloor, a unique marine ecosystem has sprung up off Heligoland. Florian and biologist Karin Boos take a closer look.

After observing up close the birth of skeleton shrimp in a small aquarium, Florian and Natali go diving off Heligoland in search of nocturnal marine creatures. Faszinierend!

The sea at night offers another view of many different creatures who come out to hunt... or be hunted! With this, Florian and Natali conclude their North Sea adventure.

The International Green Week in Berlin is the world's most famous agricultural trade fair. This year the farmers are very pleased with the results and with the increased consumer interest in agricultural products and renewable production processes.
Copyright: Deutsche Presse Agentur [The German Press Agency]

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. In spring, we can witness dramatic moments in the life cycles of many underwater creatures.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. Here we see many animals emerge from hibernation, and then catch a glimpse of what lies over one hundred meters below the surface.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. From the swiftly flowing streams to the cliffs high above, the area around the lakes hosts a number of different species.

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.

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!

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.