Animal rights, sometimes known as animal liberation is a serious issue that is often neglected. PETA is probably the biggest group of animal activists in the world. Animal rights construe that animals should have the same considerations as those that human beings enjoy. Different advocates of animal rights have various philosophies, but they all agree that animals shouldn't be regarded as property. Some even go so far as to say that animals shouldn't be used as food, clothing, entertainment or for research.

Palm Beach Zoo	(West Palm Beach, FL)
Pasadena Humane Society & SPCA	(Pasadena, CA)
Pasado's Safe Haven	(Sultan, WA)
PAWS Atlanta	(Decatur, GA)
PAWS Chicago	(Chicago, IL)
PAWS Connecticut	(Norwalk, CT)
Paws With A Cause	(Wayland, MI)
Peaceful Valley Donkey Rescue	(Tehachapi, CA)
Peggy Adams Animal Rescue League	(West Palm Beach, FL)
Pennsylvania SPCA	(Philadelphia, PA)
People for the Ethical Treatment of Animals	(Norfolk, VA)
Performing Animal Welfare Society	(Galt, CA)
Pet Adoption Fund	(Canoga Park, CA)
Pet Network	(Incline Village, NV)
Pet Orphans of Southern California	(Van Nuys, CA)
Pets Are Wonderful Support	(San Francisco, CA)
Pets in Need	(Redwood City, CA)
PetSmart Charities	(Phoenix, AZ)
Pheasants Forever (PF): The Habitat Organization	(St. Paul, MN)
Phoenix Zoo	(Phoenix, AZ)
Pittsburgh Zoo & PPG Aquarium	(Pittsburgh, PA)
Placer SPCA	(Roseville, CA)
Point Defiance Zoological Society	(Tacoma, WA)
Potter League for Animals	(Newport, RI)
PRBO Conservation Science	(Petaluma, CA)
Predator Conservation Alliance	(Bozeman, MT)
Progressive Animal Welfare Society	(Lynnwood, WA)
Providence Animal Rescue League	(Providence, RI)
Puppies Behind Bars	(New York, NY)
Quail Unlimited	(Edgefield, SC)
Ramapo-Bergen Animal Refuge, Inc.	(Oakland, NJ)
Ramona Humane Society	(San Jacinto, CA)
Rancho Coastal Humane Society	(Encinitas, CA)
Return to Freedom	(Lompoc, CA)
Rhode Island Zoological Society	(Providence, RI)
Richmond SPCA	(Richmond, VA)
Roanoke Valley SPCA	(Roanoke, VA)
Rocky Mountain Elk Foundation	(Missoula, MT)
Ruffed Grouse Society	(Coraopolis, PA)
Sacramento SPCA	(Sacramento, CA)
Sacramento Zoo	(Sacramento, CA)
Safari Club International Foundation	(Tucson, AZ)
Safe Harbor Animal Sanctuary & Hospital	(Jupiter, FL)
Saint Louis Zoo Foundation	(St. Louis, MO)
San Diego Humane Society and SPCA	(San Diego, CA)
San Francisco SPCA	(San Francisco, CA)
San Francisco Zoo	(San Francisco, CA)
Santa Fe Animal Shelter & Humane Society	(Santa Fe, NM)
Save the Manatee Club	(Maitland, FL)
Save-A-Pet Adoption Center	(Grayslake, IL)
Sea Research Foundation	(Mystic, CT)
Seattle Aquarium Society	(Seattle, WA)
Sedgwick County Zoo	(Wichita, KS)
Seneca Park Zoo Society	(Rochester, NY)
Shedd Aquarium	(Chicago, IL)
Shelby Humane Society	(Columbiana, AL)
Sioux Falls Area Humane Society	(Sioux Falls, SD)
SNAP	(Houston, TX)
Snow Leopard Trust	(Seattle, WA)
Society for the Improvement of Conditions for Stray Animals	(Kettering, OH)
Southeastern Guide Dogs	(Palmetto, FL)
Southern Oregon Humane Society	(Medford, OR)
Southwest Missouri Humane Society	(Springfield, MO)
SPCA Cincinnati	(Cincinnati, OH)
SPCA of Anne Arundel County	(Annapolis, MD)
SPCA of Central Florida	(Orlando, FL)
SPCA of Texas	(Dallas, TX)
SPCA of Wake County	(Raleigh, NC)
SPCA of Westchester	(Briarcliff Manor, NY)
SPCA Serving Erie County	(Tonawanda, NY)
SPCA Tampa Bay	(Largo, FL)
St. Hubert's Animal Welfare Center	(Madison, NJ)
Stevens-Swan Humane Society of Oneida County	(Utica, NY)
Suncoast Humane Society	(Englewood, FL)
Suncoast Seabird Sanctuary	(Indian Shores, FL)

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