This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Evolution of songs and female preference of Physalaemus.svg en Evolutive tree of males calls and females preference for this calls in the Physalaemus pustulosus species group From Shaw fr Arbre montrant l'volution des cris mles et de la prference des femelles pour ces cris chez Physalaemus pustulosus et les espces proches D'aprs