Chimpanzees walk on two feet. They have hands, use tools and language and have a complex society. They display intelligence and emotion.
Yet the United States government treats them as property, with no more rights than ashtrays or toilet seats.
About 240 chimps at the Alamagordo Primate Facility in New Mexico were rescued from an abusive owner - cited for improper care and even negligent deaths - in 2000.
They had been used for decades for research, much of which could be considered torture.