Search results for “bush viper from 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

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

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

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

Structure and function of a giraffe neck

A giraffe's neck is up to 2.50 meters long, weighs around 250 kilograms and is held in place by only one tendon and seven cervical vertebras. It is a particular challenge to the vascular system when the giraffe bends its head down to drink. Author: ZDF/Terra X/R.Marel/C.Gerisch/SpiegelTV/Jochen Sch

Zika Virus explained simply

This video is from 2016 Summer Olympics 2016 and Zika? On February 8th, 2016, the World Health Organization declared a public health emergency of international concern regarding Zika virus. Three to four million infections are possibly forecasted in the Americas over the next 12 months, but what i