Issue Information

Cover: Spectacled caiman (Caiman crocodilus) in Llanos, Venezuela.Th e warming climate will negatively aff ect nearly all species at multiple levels.Th us, adaptation to high temperatures will be critical to species' survival, particularly that of amphibians and reptiles due to the environment's regulation of their physiology and fi tness.Sun et al. (e70127) examine common evolutionary and environmental thermal variations that shape reptile and amphibian heat tolerance and acclimation capacity.Photographer: Art Wolfe (www.artwolfe.com)has worked in hundreds of locations spanning all continents