Video S1. E_prosoblepon 2019.mp4

Time-lapse videos of the emerald glass frog Espadarana prosoblepon's behavior in 0.5 s intervals from approximately 2300 h until 0600 h of the next day taken with an infrared (IR) video camera (GoPro Hero5 Black with a modified IR lens) with an external IR illuminator on the opposite corner of the cage. The outdoor enclosure had four mesh cages adjacent to one another. We used plastic bags to transport the amplectant pairs to their respective enclosures (one pair per cage). Pairs stayed in amplexus during transportation and after being transferred to the cages. This study took place at Las Cruces Biological Station in Costa Rica.