Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
A gang of hunters pretend to wash their eyes with a slimy substance, thus fooling the monkeys, who 'ape' them and blind themselves, allowing the hunters to move in. Line engraving by J. Collaert after J. van der Straet, c. 1610. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.