The evolution of a cat into an old woman, and her stool into a dog into a man in a cage into her skirt; representing Darwin's theories. Wood engraving after C. Bennett, 1863.

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The evolution of a cat into an old woman, and her stool into a dog into a man in a cage into her skirt; representing Darwin's theories. Wood engraving after C. Bennett, 1863. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.