We are pleased to announce a new series, Evolution Highlights. Each month, this series will highlight some of the interesting and varied papers published within the last few years in Evolution. This month, we highlight "How mountains shape biodiversity: The role of the Andes in biogeography, diversification, and reproductive biology in South America’s most species-rich lizard radiation (Squamata: Liolaemidae)." Highlight by Damien Esquerré.