What persuades a tiger to become a man eater? This is the core question animating John Valliant's 'The Tiger' that tells of a hunt for a man eating tiger in the far east of Russia in the 1990s. The tiger in question was to kill two men and narrowly miss two others in what can only be described as a systematic and thoughtful campaign, beginning with the hunter, Markov, who, on the evidence painstakingly compiled by Valliant, had injured the tiger (in hunting it), an injury from a human co-inhabitant of the forest, that was straw that broke the tiger's tacit arrangement of avoiding men. He took up vengeance. You might think that this is to 'anthropomorphise' the tiger but as Valliant compellingly shows theory of mind is not only applicable to our species. We genuinely have difficulty thinking about thinking when it is not bound with language but it is apparent that other animals have no such difficulty. Intelligence is not the preserve of the human - nor t...