This blog describes the arrival and spread of the tree frog Scinax quinquefasciatus in the Galápagos Islands, likely occurring in the late 1990s. This species, resistant to salinity and drought, has rapidly established itself in urban, agricultural, and natural areas, impacting local wildlife. Recent research has revealed a massive population in several locations, posing ecological and human health risks due to their constant loud calls. To control this invasion, it is crucial to gain a deep understanding of the species' ecology and develop effective management strategies.