Many animal rights activists claim that adequate animal housing should be geared towards the natural environment of animals. For example, they claim that monkeys should be not kept within human's houses because their natural environment is the jungle. Therefore, the adequate housing for monkeys should be something which comes as close as possible to a jungle.
Isn't this point of view a result of the naturalistic fallacy? Deriving the view on "what is good" from how something looks in its "natural environment"? Wouldn't it be possible that the life of a monkey (just for this example) is anyhow better in a human's house than in the wild jungle?
Please don't misunderstand this question. It is not my intention to plead for any way of animal or monkey housing. It's just an example and this question is intended to sharp my understanding of the Naturalistic Fallacy.