An ape of the genus troglodytes niger standing before a tropical scenery holding a large branch of a tree. Coloured etching by W. H. Lizars.

Licence: Public Domain Mark

Credit: An ape of the genus troglodytes niger standing before a tropical scenery holding a large branch of a tree. Coloured etching by W. H. Lizars. Wellcome Collection. Source: Wellcome Collection.