Twain writes about cruelty to animals in a range of contexts, criticizing, for example, the insensitivity involved in the exploitation of animals for sport or entertainment. Twain may have been the first American to call attention to the brutality of the so-called sport of cockfighting, which he describes in graphic detail.Interesting. The book also contains writings by Twain against vivisection.
Several pieces express Twain’s contempt for the idea of hunting for sport, including a memorable passage from a sequel to Huckleberry Finn in which Huck shoots a bird and feels immediate remorse and shame (“Huck Shoots a Bird”). Another text in the book--from an unpublished piece of autobiographical writing -- makes it clear that Twain based this account on an experience he had himself as a child (“Assassin”).
Twain wrote a searing account of an English earl’s behavior on a buffalo hunt (in “Man’s Place in the Animal World”) and wrote an impassioned anti-bullfighting novella (A Horse’s Tale).
You can buy it here.