Mexican Leaf Frog (IMAGE) University of Arizona Caption A Mexican leaf frog, photographed near Alamos, Mexico. Both plant and animal species in the tropics, like this frog, were found to occur over a narrower range of temperatures than temperate species, which may make tropical species much more vulnerable to climate change. Credit John J. Wiens Usage Restrictions This visual may only be used for the purpose of posting and/or reporting of this news release. Credit information must be provided as indicated. 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.