Woolly mammoths evolved smaller ears and woolier coats over the 700,000 years that they roamed the Siberian steppes

A team of researchers compared the genomes of woolly mammoths with modern day elephants to find out what made woolly mammoths unique, both as individuals and as a species. The investigators report April 7 in the journal Current Biology that many of the woolly mammoth’s trademark features—including their woolly coats and large fat deposits—were already genetically encoded in the earliest woolly mammoths, but these and other traits became more defined over the species’ 700,000+ year existence. They also identified a gene with several mutations that may have been responsible for the woolly mammoth’s miniscule ears.


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Source: Phys.org