The book, despite my 3 examples, details a great deal of wild animal drug use. Off the top of my head, the drunken monkeys who eat fermented melons and terrorize nearby villages, or small birds gorging themselves on holly berries and getting trashed enough to fly into walls.
Animals are also sexually rather deviant, by human standards. Group sex, circle jerks, mutual masturbation, homosexuality, etc. are all seen in animals. It makes sense, because the pleasure we feel from orgasm is an inducement to the behavior, we humans know what happens in the long term, though. Animals don't necessarily know that, they just think it feels great, and later, they have a litter. Well, maybe they do and maybe they don't, but I doubt there is any moralizing going on, whether they wanna get high, get laid or both.
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