The objective of animal shelter is to provide a safe and caring environment until the animal is either reclaimed by its owner, placed in a new home, or placed with another organization. In Greencastle, some animal shelters euthanize animals that are not adopted within a period of time; others have a strategy of only putting down animals that are in suffering due to age or illness. The shelters in Greencastle have education, research and conservation related activities along with training programs on animal welfare.
In Greencastle, even some shelters capture and provide the homeless street animals, sterilization, hold them till six days or more to recuperate, give them anti-rabies injections, and return to their original territories. Through animal-shelters facility many animals who are being tortured by human hands get relieved and get to leave in a better condition for the rest of their lives; animal shelters treat these kind of animals, even those who are suffering from some infections and diseases. They are kept in an environment which is secure and assure them love and care.
Animal shelters often work closely with rescue groups, because shelters that have difficulty placing otherwise healthy and pet-worthy animals would usually rather have the animal placed in a home than euthanized , while the shelters might run out of room, they can often find more volunteers with space in their homes for temporary placement.