New study finds that elephants evolved the most discerning nose of any mammal

http://www.washingtonpost.com/national/health-science/new-study-finds-that-elephants-evolved-the-most-discerning-nose-of-any-mammal/2014/07/22/8b715a1e-11b1-11e4-8936-26932bcfd6ed_story.html