Animal repellent chipmunks. Bobcat urine repels moles, mice, voles and other rodents. Wolf urine is used to repel moose. Used cat litter is also effective, but needs repeated application. Chemical repellents mimic natural substances that repel or deter animals, or they are designed to be so irritating to a specific animal or type of animal that the targeted animal will avoid the protected object or area. Some chemical repellents combine both principles. There are many homemade deer repellent recipes on the web. For example, the lawn fertilizer Milorganite is claimed to be an effective repellent due to its smell. Repellents fall into
Animal studies and to understand animals as beings-in-themselves, separate from our knowledge of them. Because the field is still developing, scholars and others have some freedom to define their own criteria about what issues may structure the field. As an interdisciplinary subject, animal studies exists at the intersection of a number of different fields of study. Different fields began to turn to animals as an important topic at different times and for various reasons, and these separate disciplinary histories shape how scholars approach animal studies. In part, animal studies developed out of the animal liberation movement and was grounded in ethical questions