That means making sure they get their exercise, and for 6-month-old African elephant Joy, that means chasing around her favorite human like a giant puppy ... on figuring out speed and balance ...

well sort of. Duncan, the Houston Zoo's cute and cuddly baby elephant had a rare taste of the outside world Tuesday after his two aunties accidentally pushed him out of the elephant enclosure.

By Emily Anthes For a 7,600-pound Asian elephant, simply putting one foot in front of the other can be a high-stakes proposition: A trip or tumble can result in grievous injury. “The bigger you ...