http://www.salon.com/2015/07/16/bad_news_for_polar_bears_why_the_endangered_species_may_not_be_able_to_adapt_to_a_warming_arctic_after_all/
http://www.salon.com/2015/07/16/bad_news_for_polar_bears_why_the_endangered_species_may_not_be_able_to_adapt_to_a_warming_arctic_after_all/