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:
PSM DShowing the Enormous Distance between the First and Second Toes in Tamil of Trichinofoly. Diagram from article THE PREHENSILE FOOT OF EAST INDIANS By REGNAULT archive org Popular Science Monthly Volume author PDold Extracted image from book to grayscale cropped whitespace ineuw archive org Popular Science Monthly Volume