Still Waters Posted October 17, 2013 #1 Share Posted October 17, 2013 Scientists have discovered the best-preserved nervous system in an ancient fossil. Dating back 520 million years, the clawed spider-like fossil shows clear evidence of a brain and of nerve cords running through the creature's trunk. The specimen now confirms that the ancestors of spiders and scorpions were related, but branched off more than half-a-billion years ago. http://www.bbc.co.uk...onment-24550167 Link to comment Share on other sites More sharing options...
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