According to Lafollette (n.d), there are boundaries about animals that human beings should strive not to cross as opposed to treating animals in the way one pleases. It is not legitimate to mistreat animals even though they have no voice to rise. In this culture that we are living in today, animals are used as the main source of food, clothes, and research on drugs and to test the vulnerability of some appliances at home. All these can only be realized when the animal is dead or involves inflicting pain to the animal. Animals have a right against overcrowding. This implies that an animal has a right to enough space during its lifespan. This has not been followed especially by farmers who keep them for profit. Animals also have the right to enough movement. Due to the limitations of space, animals are confined in one place leading to less feeding and poor movement. For instance, chicken is overcrowded in little battery cages. The more crowded the animals are, the more likely they are to attack each other and cause injury to one another.