/ Grosberg Content for аÄÃÅÁùºÏ²ÊÄÚÄ»ÐÅÏ¢ Davis en /news/its-good-be-rare-some-species <p>When most people think of rare species, they think of endangered ones that humans have caused to be rare through habitat loss, poaching, climate change and other disturbances. But some species have always been rare — occurring in small densities throughout their range — throughout their evolutionary history. Yet little is known about the traits that allow for them to be chronically rare and stay rare for long periods of time.</p> December 06, 2017 - 5:04pm Katherine E Kerlin /news/its-good-be-rare-some-species