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:
Haeckel Batrachia. Assessments in German Image Haeckel frogs text File Haeckel frogs with labels Haeckel Batrachia lineatus Hylarana erythraea Haeckel Hylarana erythraea Haeckel Haeckel Gastrotheca ovifera Kunstformen der Natur Paintings of frogs Neobatrachia Gastrotheca ovifera Hyla meridionalis Ecnomiohyla tuberculosa