Search results for “west africa”

5 things worth knowing about the risks of Ebola

A Public Health perspective on getting the risks and dangers of the Ebola virus in perspective. Ebola is a serious infectious disease, and should never be taken lightly. Yet it's easy for lack of understanding of this virus to give way to fear, when what we really need to tackle it is knowledge. A

Endangered lion populations

Lions play an important role in the ecological balance in their habitats. This was already the case two million years ago. In the meantime, many populations are threatened with extinction. The situation is particularly critical in West and Central Africa. https://www.zdf.de/dokumentation/terra-x/b

Y chromosome and human migration routes

All men who once emigrated from Africa have the same mutation on the Y chromosome. Over time, other mutations appeared that can still be detected today. Author: ZDF/Terra X/Tobias Schultes/Albrecht M. Wendlandt Redub: alugha Click here to see more videos: https://alugha.com/TerraX

ScienceCasts: Southern Hemisphere Solar Eclipse

Visit http://science.nasa.gov/ for more. On Sunday, February 26th, the moon will pass in front of the sun, transforming rays of sunlight across parts of South America, southern Africa and Antarctica into fat crescents and thin rings of light. Click here to see more videos: https://alugha.com/NASA

German Reunification in a nutshell

25th anniversary of German Reunification – an event that had a great impact on Europe and became another symbol of the end of the worldwide East-West conflict. This simpleshow explains the basic facts about the German Reunification – in just two minutes! Authors: Waldemar Ibbe, Rodrigo Diaz McVeigh

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/

When did racism start?

Racist thinking is probably as old as mankind. With Columbus and the colonization of Africa and South America over 500 years ago, racism entered the world stage. However, the term "racism" was not coined until the late 19th century. Source: https://www.zdf.de/dokumentation/terra-x/seit-wann-gibt-es

How the Berlin Wall was built

On August 13, 1961, the GDR began building the Berlin Wall. It was intended to make it impossible for people to escape to West Berlin. In the years that followed, the Wall became a high-security zone - and a death trap. Berlin was divided for 10,680 days. Author: History Media / Jörg Müllner / Kaw

What is a stromatolite

Stromatolites are calcareous deposits. The stones can be up to 3.5 billion years old. For a long time they were known only as fossils, until 1956, when a "living" colony of stromatolites was discovered off the west coast of Australia. Author: ZDF/Terra X/Viking Film/Iris Gesang/Andreas Kieling, Fra