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:
The anatomy of the frog Page Figs. ab BHL. The anatomy of the frog by Alexander Ecker translated with numerous annotations and additions by George Haslam Page Figs ab Text Illustration biodiversitylibrary org title Ecker Alexander Haslam George NOTINCOPYRIGHT Biodiversity Heritage Library Check categories October PDold