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Pandemic Lessons From Open-Air School Movement, A Century Ago

In the early 1900s, the tuberculosis crisis inspired an outdoor-oriented education model that may be just what the doctor ordered in this new period of pandemic.

Our Neanderthal Cousins May Have Gone Extinct Because of Sex

One of the greatest unanswered questions in human evolution is how the Neanderthals perished. According to a recent study, sex rather than aggression may have caused Homo sapiens to be accountable for the demise of Neanderthals.

Neanderthal s Extinction May Be Caused By an Entirely Different Reason

Theory Explains How the Neanderthal Extinction Happened

Theory Explains How the Neanderthal Extinction Happened
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Earliest Modern Man Genome Identified by Neanderthal Ancestry

Close (Photo : Max Fleischer, Dave Fleischer and Ovide Decroly on Wikimedia Commons) Since modern humans left Africa around 50,000 years ago, ancient DNA from Neanderthals and early modern humans revealed that the two groups actually interbred somewhere in the Near East. As a result, anyone outside of Africa carries about 2% to 3% Neanderthal DNA. Those Neanderthal DNA segments grew progressively shorter in modern human genomes over time, and their length can be used to approximate when a person lived. Furthermore, archeological evidence released last year indicates that modern humans were already present in southeastern Europe 47-43,000 years ago. However, nothing is known about who these early human colonists were - or their connections to ancient and modern human communities - owing to a shortage of reasonably complete human fossils and the absence of genomic DNA.

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