RT Journal Article SR Electronic T1 THE SUPPOSED BIPOLARITY OF POLAR FAUNAS JF Science JO Science FD American Association for the Advancement of Science SP 516 OP 517 DO 10.1126/science.8.198.516 VO 8 IS 198 A1 ORTMANN, ARNOLD E. YR 1898 UL http://science.sciencemag.org/content/8/198/516.abstract AB