A Proboscis monkey holding on to a tree with its left arm while clasping a round object in its right hand. Etching by P. Mazell.

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

A Proboscis monkey holding on to a tree with its left arm while clasping a round object in its right hand. Etching by P. Mazell. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.