In January, six justices of the Colorado Supreme Court unanimously ruled that five elderly African elephants were not people. That may not sound like an issue that needs six justices to resolve, but ...

The Colorado Supreme Court heard arguments that elephants deserve personhood and should be released from the Cheyenne Mountain Zoo. It gave Colorado the dubious accomplishment of being the first ...

This undated photo provided by the Cheyenne Mountain Zoo shows elephants Kimba, front, and Lucky, back, at the zoo in Colorado Springs, Colo. (Cheyenne Mountain Zoo via AP) (CN) — Five elderly African ...

The offspring of hippos once owned by Colombian drug kingpin Pablo Escobar can be recognized as people or “interested persons” with legal rights in the U.S. following a federal court order. The case ...

Scientists are closer than ever to deciphering sperm whale communication. Their breakthroughs could open the door to expanded whale rights and even legal personhood. A pod of sperm whales swims off ...

In retrospect, a bachelor party was a bad time to bring up animal rights. But in my defense, the groom was a friend, and a philosophy minor, and the invite specifically encouraged "intellectual ...

The point of the animal personhood cases isn't to play it safe, though. It may be a niche and largely unsuccessful legal movement, but it also asks tough questions about animals, autonomy, and our ...