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Geckos might lose their tails, but not their dinner

Geckos might lose their tails, but not their dinner
eurekalert.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurekalert.org Daily Mail and Mail on Sunday newspapers.

Tim Higham , Marina Vollin , Department Of Evolution , Organismal Biology , Comparative Biology , நேரம் ஹிகாம் , துறை ஆஃப் பரிணாமம் , ஒர்கனிஸ்மால் உயிரியல் , ஒப்பீட்டு உயிரியல் ,

Genetic Study of Romanian Skull Upends Previous Theories of Evolution


Until now it was believed that the number of people who chose to leave their African homeland was relatively small and homogenous. Consequently, their descendants in new lands would have lacked  genetic diversity  since their ancestors all came from a genetically limited population base. Whatever genetic diversity they did possess would decline noticeably over time, as the original migrants divided up into separate groups that mixed with each other less and less.
This theory was developed to explain the results elicited from the existing human fossil record. DNA samples taken from ancient skeletons recovered in various locations in Europe and Asia have shown a low level of  diversity, in comparison to ancient skeletons recovered in  Africa. But there was a flaw in this research. The human fossils analyzed previously were not as old as the skull recovered from the cave in Romania. ....

Mattias Jakobsson , David Naylor , Cristian Bortes , Uppsala University , David Naylor Uppsala University , Swedish Uppsala University , Mattias Jakobsson Uppsala University , Department Of Organismal Biology At Uppsala University , Current Biology , Study Shows Diversity , Early Europeans , Ice Age , Organismal Biology , Genetic Bombshell , Genetic Study , Last Glacial Maximum , Lost Genetic Diversity , Agricultural Revolution , Saharan Africa , Eştera Muierii , Hunter Gatherer , டேவிட் நெய்லர் , தற்போதைய உயிரியல் , பனி வாழ்நாள் , ஒர்கனிஸ்மால் உயிரியல் , ஜெநெடிக் படிப்பு ,