The Hunting of the Snark based on a draft by Lewis Carroll, the Snark was allowed to show up in an illustration by Henry Holiday, where it appeared in a dream of the Barrister. The illustration to the chapter "The Banker's Fate" might contain pictorial references to the etching "The Image Breakers" by Marcus Gheeraerts the Elder, to William Sidney Mount's painting "The Bone Player" and to a photograph by Benjamin Duchenne used for a drawing in Charles Darwin's "The Expression of Emotions in Man and Animals". Upon the printing of the book on 29 March 1876, Carroll gave away eighty signed copies to his
Emotion in animals could be used to include all the animal kingdom as well as some plants. The second approach, mechanistic, requires an examination of the mechanisms that drive emotions and search for similarities in animals. The mechanistic approach is utilized extensively by Paul, Harding and Mendl. Recognizing the difficulty in studying emotion in non-verbal animals, Paul et al. demonstrate possible ways to better examine this. Observing the mechanisms that function in human emotion expression, Paul et al. suggest that concentration on similar mechanisms in animals can provide clear insights into the animal experience. They noted that in humans, cognitive biases vary according