Making adjustments for a new neighborhood

Abstract

Evolutionary Biology![Figure][1] Anolis carolinensis (green) moves up for Anolis sagrei (brown) PHOTO: © CHRIS MATTISON/ALAMY Competition between species drives the acquisition of diversity. Stuart et al. introduced a non-native anole lizard to natural experimental islands. In response, the original inhabitants adopted higher perches in the trees, where the larger invader was at a disadvantage. Within about 3 years—or 20 generations—the shift led to inherited morphological changes in the native lizards, including their growing larger toepads. Science , this issue p. [463][2] [1]: pending:yes [2]: /lookup/doi/10.1126/science.1257008