Laboratory chimps caged for 30 years are finally released to a sanctuary.

Like prisoners emerging from a lifetime behind bars, a group of chimpanzees step blinking into the sunlight. This is the first time they have felt grass under their feet and breathed fresh air for 30 years. A few of the chimps were born in captivity but most were kidnapped from African jungles as babies and flown to Europe, where they were locked in metal laboratory cages to be used in a long series of experiments. Their ordeal finally ended in September 2011 when 38 of the surviving chimps were released into a sanctuary in Austria, allowing them to feel the nurturing contact of their fellow chimps after years of being separated by bars and bullet-proof glass.