Omnivore preferably dry bones, for particular minerals and nutrients. Felines, which are usually regarded as obligate carnivores, occasionally eat grass to regurgitate indigestibles (e.g. hair, bones), aid with hemoglobin production, and as a laxative. Occasionally, it is found that animals historically classified as carnivorous may deliberately eat plant material. For example, in 2013, it was considered that American alligators ("Alligator mississippiensis") may be physiologically omnivorous once investigations had been conducted on why they occasionally eat fruits. It was suggested that alligators probably ate fruits both accidentally but also deliberately. "Life-history omnivores" is a specialized classification given to organisms that change their
An Introduction to Animals and Political Theory the interests of animals". He outlines two ways that animals might be protected without being the recipients of justice; first, they may be owed direct duties outside of justice, or, second, they might be protected by means of indirect duties, meaning that they are protected because of what humans owe to one another. Despite raising these themes in his review of "An Introduction to Animals and Political Theory", Garner later rejected both possibilities in his own work, arguing that animals should be considered recipients of justice. Rasmussen felt that Cochrane utilised a narrow account of the political, meaning that a