ASPCA is one of the oldest animal welfare organization, established in 1866. HSUS is one of the largest non-profit organization that is mostly works for advocating animal rights.

ASPCA is one of the oldest non-profit organization that has dedicated itself with preventing cruelty against animals. SPCA is a humane society group that was established in 1824 in England to protect carriage...

PETA is an animal rights organization that fights for all forms of animal rights. ASPCA is one of the oldest NGO that fights for the welfare of animals.