A Washington, D.C.-based animal-rights nonprofit on Tuesday sued the operator and head of the Pittsburgh Zoo & Aquarium, ...

Chimpanzees in Michigan are not considered “persons” with human rights, according to the state’s Court of Appeals. That means ...

The Nonhuman Rights Project sues the Pittsburgh Zoo for inadequate elephant living conditions, seeking sanctuary for the ...

The Michigan Court of Appeals has denied a writ of habeas corpus for seven chimpanzees currently at the DeYoung Family Zoo in ...

A Michigan Court of Appeals ruled Friday that chimpanzees are not human, and will not be granted release from a zoo in the ...

The operator and head of the Pittsburgh Zoo is facing a lawsuit filed by a Washington, D.C.-based animal rights nonprofit, ...

An animal rights group is suing the Pittsburgh Zoo & Aquarium, seeking the release of five elephants it says are being kept ...

An animal rights group plans to appeal a case to the Michigan Supreme Court seeking an unlawful imprisonment hearing for six ...

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 Nonhuman Rights Project was pushing for the distinction. A yearslong legal attempt to get Happy, an elephant residing at the Bronx Zoo, transferred to an elephant sanctuary failed Tuesday when New ...

The Nonhuman Rights Project has sued the Pittsburgh Zoo to gain the release of five elephants over alleged mistreatment.

An animal rights group has filed a lawsuit against the Pittsburgh Zoo & Aquarium and is demanding the zoo release its ...