Ancient Arctic sharks tolerated brackish water 50 million years - TopicsExpress



          

Ancient Arctic sharks tolerated brackish water 50 million years ago | #Geology #GeologyPage Sharks were a tolerant bunch some 50 million years ago, cruising an Arctic Ocean that contained about the same percentage of freshwater as Louisianas Lake Ponchatrain does today, says a new study involving the University of Colorado Boulder and the University of Chicago. Read more : geologypage/2014/07/ancient-arctic-sharks-tolerated.html Geology Page geologypage
Posted on: Mon, 20 Oct 2014 02:00:01 +0000

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