A Pacific Leaping Blenny (IMAGE) University of New South Wales Caption This is a male Pacific leaping blenny, Alticus arnoldorum, in Guam. These terrestrial fishes spend all their adult lives on land, on the rocks in the splash zone. They use a tail-twisting behavior to leap about. Credit Courtney Morgans/UNSW 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.