Zuba - White tigers are hunted by poachers and used for Chinese medicine. The white tiger is not a species unto itself so cannot be classed as endangered. It is a genetic flaw of the Bengal tiger, and extremely rare.
This pictures is a close up of a tiger. The eyes stuck out to me because they represent how eyes are the key to the soul. The mood it seems is fierce and ready for competition and that's how you have to be in life, or in Pi's case, on a life boat.