Alum Jesse Delia (’18), Laura Bravo-Valencia, and Prof. Karen Warkentin recently published a paper in Ecological Monographs titled “The evolution of extended parental care in glassfrogs: Do egg-clutch phenotypes mediate coevolution between the sexes?” This research was featured on the journal cover photo pictured above.
Glassfrogs are a group of Neotropical frogs that lay terrestrial eggs over streams, with the center of their diversity in Colombia. Male-only parental care has evolved multiple times in this clade, from ancestors with female-only care. Each time that males took over care it evolved to be longer and more elaborate. Delia et al. found that male care evolved in association with maternal changes to egg clutch structure and oviposition site choice that increase embryos’ need for care.
You can read the paper here.