Ed Stewart, president and co-founder of PAWS, thinks that even his massive haven is not adequate to keep the elephants as healthy as they would be in the wild. “Elephants should not be in captivity— period,” he says. “It doesn’t matter if it’s a zoo, a circus or a sanctuary. The social structure isn’t correct, the space is not right, the climate is not right, the food is not right. You can never do enough to match the wild. They are unbelievably intelligent. With all of that brainpower—to be as limited as they are in captivity—it’s a wonder they cope at all. In 20 years I hope we will look back and think, ‘Can you believe we ever kept those animals in cages?'”

via The Science Is In: Elephants Are Even Smarter Than We Realized [Video] – Scientific American.