animals. In 2013 the NhRP filed the first-ever lawsuits on behalf of chimpanzees, demanding courts grant them the right to bodily liberty via a writ of habeas corpus. The original petitions were denied, and legal efforts on behalf of the chimps are ongoing as of spring 2016. The NhRP plans to file a habeas corpus lawsuit on behalf of captive elephants later in 2016. See also :Category:Animal welfare organizations based in the United States Fauna of the United States List of animal rights advocates Timeline of animal welfare and rights Timeline of animal welfare and rights in the United States Timeline of animal welfare and rights in Europe Abolitionism (animal rights) Universal Declaration on Animal Welfare U.S. Meat Animal Research Center Speciesism References Animal welfare and rights in the United States Pets in the United States