A recent change in U.S. law has brought to an end decades of medical testing on chimpanzees. Animal lover Sue Perkins travels to rural Louisiana to visit America's national chimp sanctuary to see how they and the chimps are coping.
A recent change in U.S. law has brought to an end decades of medical testing on chimpanzees. Animal lover Sue Perkins travels to rural Louisiana to visit America's national chimp sanctuary to see how they and the chimps are coping.
