" The U.S. system of justice contains laws whereby nonhuman animals have no legal standing, but are defined as “property,” as wives and enslaved Africans once were. Other animals (including mice, rats, and birds) are excluded from the legal definition of “animal” in the U.S., thereby denying these individuals whatever slight protection might be provided by U.S. animal welfare laws, and allowing science to use these sentient beings in any way researchers see fit, without fear of legal sanction. Other speciesist laws prevent animal advocates from using free speech on behalf of hunted animals, while protecting right-to-life advocates who speak out on behalf of fetuses. Institutionalized support for the systematic oppression of nonhuman animals is also evident in the recent Animal Enterprise Terrorism Act, as well as in the mainstream media, both of which – unbelievably – label animal advocates as “terrorists. "

― Lisa Kemmerer , Sister Species: Women, Animals and Social Justice