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Cruelty to animals refers to the infliction of unnecessary suffering or harm to nonhuman animals.
Broadly speaking, there are two approaches to the issue. The animal welfare position holds that there is nothing inherently wrong with using animals for human purposes, such as food, clothing, entertainment, and research, but that it should be done in a humane way that reduces unnecessary suffering. Animal rights theorists criticize this position, arguing that the words "unnecessary" and "humane" are subject to widely differing interpretations, and that the only way to ensure protection for animals is to end their status as property, and to ensure that they are never used as commodities.