From 1831 until his death in 1887, the obscure Austrian dyer and amateur artist Aloys Zötl produced an extensive series of very large and beautifully drawn watercolours of exotic animals, known as the Bestiarium. This massive project was to be his life’s work, although its purpose remains unknown. The watercolours of the Bestiarium, characterized by a brilliant technique and rich colouring, allied to the unbridled imagination of the artist, do not seem to have ever been reproduced in Zötl’s lifetime, either as prints or in the form of a book. While the animals are generally depicted with a high degree of accuracy, they are given a sort of added symbolism in the way in which the artist has depicted them on the page. Most of the watercolours show the animals in some form of natural habitat, although this at times seems to verge on the imaginary. It is not known if these spectacular watercolours were the result of a commission or – as is perhaps most likely, given the fact that they were part of a project that seems to have lasted over fifty years – simply an astonishing, and lifelong, labour of love.