The Humane Society of the United States (HSUS) is a nonprofit organization dedicated to animal welfare. Founded in 1954, it works to protect animals through advocacy, education, and rescue efforts. HSUS focuses on various issues, including factory farming, animal testing, and pet adoption. HSUS also engages in legislative efforts to promote animal rights and improve laws related to animal care. The organization collaborates with local shelters and other groups to provide resources and support for animal rescue and rehabilitation. Through its initiatives, HSUS aims to create a more humane society for all animals.