Three cats: A lion standing on a rock, a leopard curled up under neath, and a tiger prowling. Coloured etching by T. Landseer.

Licence: Public Domain Mark

Credit: Three cats: A lion standing on a rock, a leopard curled up under neath, and a tiger prowling. Coloured etching by T. Landseer. Wellcome Collection. Source: Wellcome Collection.