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!

Reporters from the German magazine Auto Bild are visiting the annual International Auto Show in Frankfurt. Here, they show us which cars were the tops and the flops - and tell us why. Schaut mal rein!

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.

For dog lovers: with the coming of the European Union, the once dominant breed, the German shepherd, is falling out of favor as a K9 service animal. Höchst interessant!

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.

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

Florian and Natali join divers Joop and Felicia Stahlenburg in making underwater willow tipis for the endangered cuttlefish to spawn in.

Toasting your friends and setting off fireworks is an essential part of the New Year celebration, but unfortunately the animals in the Berlin Zoo don't feel the same way! See how the Berlin Zoo tries to deal with the problems of inner-city fireworks and their animals. (video copyright dpa)

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

All across the country, refugees are now receiving German instruction from volunteers because they are not officially entitled to it when they first arrive. Three educators from Bavaria have developed their own teaching materials especially for this purpose. Sehr interessant!

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!

Annually over 100 million animals are lodged in Frankfurt's Animal Lounge. A wide assortment of living creatures are temporarily received, examined by a veterinarian and lovingly cared for. Viel Spaß!

Twenty-five years since the fall of the Berlin Wall: Peter Barsch lived in East Germany and, as a young man, spent time in prison because of his attempts to flee to the West. These days he tells his story while conducting bicycle tours through the capital. Sehr interessant! Copyright: Deutsche Presse Agentur [The German Press Agency]

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.

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.