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* Friday, January 03, 2014
What we discovered about ancient human origins this year… and what is still a mystery
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This year, huge strides were made in unravelling some of the mysteries of our ancient ancestors.
Reconstruction of Neandertaler at Neanderthal Museum (Photo: Wikimedia Commons)
Reconstruction of Neandertaler at Neanderthal Museum (Photo: Wikimedia Commons)
For example, in the first ever analysis of a virtually complete Neanderthal genome, scientists were able to prove that rampant interbreeding occurred between Humans, Neanderthals and other species, resulting in an incredibly complex family tree. However, other studies revealed that there is so much more about our ancestry that we still don’t know, such as several studies pointing to the possibility of a completely unknown ancient human lineage. Here is a snap shot of some of the most significant studies to be made in 2013 relating to our ancient human origins.
What was revealed about Inter-breeding and how it formed our family tree
It was long believed that Neanderthals became extinct before modern Humans even emerged. However, this theory was later revised and it became accepted that Neanderthals and modern Humans had a cross-over of thousands of years, but never encountered each other. New evidence caused a revision yet again, this time saying that Neanderthals and modern Humans did indeed encounter each other but never interbred. And this year, in yet another shake-up of old theories, a number of studies have presented evidence that Humans and Neanderthals did interbreed and produce offspring.
In one of the most dramatic studies that have been seen in many years, scientists were able to extract DNA from a 50,000-year-old fossil that came from a Neanderthal woman found in a Siberian cave and piece together the Neanderthal genome to the same level of detail that has been achieved in modern day humans. The results showed that ancient human species, including Neanderthals, Denisovans and Homo sapiens mated with each other, resulting in an incredibly complex family tree. In fact,..