Photo Stories: • Captivity: watoto-elephants-zoo2135-2

Watoto, a female African elephant held at the Woodland Park Zoo, pushes against her interior enclosure in Seattle, Wash. on December 15, 2011. In August 2014 the 45 year-old elephant was found lying in an outdoor enclosure and later euthanized. An autopsy report found chronic, age-related arthritis in the leg joints and determined she fell and couldn't get back up. (photo Karen Ducey)

Watoto, a female African elephant held at the Woodland Park Zoo, pushes against her interior enclosure in Seattle, Wash. on December 15, 2011. In August 2014 the 45 year-old elephant was found lying in an outdoor enclosure and later euthanized. An autopsy report found chronic, age-related arthritis in the leg joints and determined she fell and couldn't get back up. (photo Karen Ducey)