Giraffe species and distribution

In the 18th century, giraffes were widespread in sub-Saharan Africa. In the meantime, their habitat has shrunk considerably. Until 2016, only one species with nine subspecies was known. DNA tests, however, prove that there are four different species. Author: ZDF/Terra X/R.Marel/C.Gerisch/SpiegelTV/Jochen Schmidt Translation and dubbing: alugha Click here to see more videos:

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Influence of the sun on deep-sea animals

Normally, animals remain loyal to their habitat once they have conquered it. But not in the oceans. Every night after sunset, the largest animal migration on the planet begins around the globe. Author: ZDF/Terra X/Group 5 Film Production/Tamar Baumgarten/Scope VFX/Maximilian Mohr Translation and d

Formation of the Baltic Sea

20,000 years ago, the Baltic Sea region was still covered by a glacier. A change in climate caused the glacial ice to melt. The first form of the Baltic Sea emerged: a freshwater lake. Today, despite its connection to the North Sea, it is considered an inland sea. Author: ZDF/Terra X/Nina Zorn/Anna

Aircraft safety — two is better than one

Airplane safety starts with the construction of aircrafts. Every defect that could occur is already taken into account during construction. All safety-relevant systems or components are available at least twice. Author: ZDF/3sat/nano/docuvista/A. Leuschner/M. Wurtscheid/H. Müller/S.Reeh/Maximilian