December 2017 cover
The isolated island continent of Australia has an exceptionally diverse lizard and snake fauna. However, recent research indicates this fauna is relatively young, and characterised by mass turnover and immigration following major climatic perturbations in the mid-Cenozoic. Photo by Damien Esquerré.
From 'Phylogenetic evidence for mid-Cenozoic turnover of a diverse continental biota'. Oliver & Hugall, Nature Ecology & Evolution 1; 1896-1902 (2017).