Hourglass Treefrog (IMAGE) Smithsonian Caption Hourglass treefrog (Dendropsophus ebraccatus). Amphibians, which face some of the steepest declines worldwide, saw some of the biggest benefits to living in protected lands. Credit Justin Nowakowski Usage Restrictions This photo is available for publication in media articles, provided the photographer is credited as noted here. 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.