Xenopus Frogs (IMAGE) University of California - Berkeley Caption This is <i>X. laevis</i> flanked by its smaller cousin, <i>X. tropicalis</i>. Credit Atsushi Suzuki, Hiroshima University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.