books.google.com - The recognition of animal pain and stress, once controversial, is now acknowledged by legislation in many countries, but there is no formal recognition of animals' ability to feel pleasure. Pleasurable Kingdom is the first book for lay-readers to present new evidence that animals--like humans--enjoy...http://books.google.com/books/about/Pleasurable_Kingdom.html?hl=lv&id=JTb7_XfgelYC&utm_source=gb-gplus-sharePleasurable Kingdom
