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
Animals in Buddhism which encourage monks to accept whatever food they are given. However, monks are forbidden from accepting animal flesh if they know, believe or suspect that the animal in question was killed especially for them, i.e., if the visits of begging monks have become an occasion for the slaughter of animals. In the Mahāyāna & sutras, the Buddha explicitly prohibits the eating of meat, fish and any animal products which are the result of harming and killing of any sentient being. The Buddha states the only time it is acceptable for a monastic to accept and eat the flesh of sentient