Polar bears are rewiring their own genetics to survive a warming climate

With climate change steadily dismantling the icy habitat essential to their existence, new research suggests polar bears are rapidly rewiring their own genetics in a bid to survive. The species is being forced to adapt to the harsher reality of a warming Arctic, in what scientists believe is the first documented case of rising temperatures driving genetic change in a mammal. Researchers from the University of East Anglia in Britain say these findings, published Friday in the journal Mobile DNA, offer a rare glimmer of hope for the species. "Polar bears are still sadly expected to go extinct this century,...