Study: Living in captivity gives chimpanzees PTSD

Two new studies reveal that chimpanzees, one of our closest non-human relatives, can get post-traumatic stress disorder from living in captivity, or from the traumatic events that led to their being in captivity in the first place. Many chimpanzees in zoos are rescues of the (often illegal) animal trade, in which young chimps are often torn from their mothers and placed in restrictive cages.

Earth Times has the story:

Can Chimps Have PTSD?