Introduction: Animal right refers to the privileges that animals should enjoy. The traditional attitude towards animals was based on the assertion that have no rights and therefore it is not the subject of moral concerns. The interests of animals should not be ignored because they belong to the species that are considered inferior to the human beings. Animals also should have rights as they contribute to the world economy and improve people’s life by providing all favorable socialized conditions. Animal interests should have the same moral weight as human ones and all animals are equal. So they should not be eaten or killed.