Dolly, a female African elephant at the Maryland Zoo, was humanely euthanized on March 16.
Dolly spent Saturday normally interacting with other elephants in the zoo's herd but on Sunday morning was found lying in the barn, which was inconsistent with her normal behavior, according to a press release from the Maryland Zoo.
"The Zoo elephant team and veterinarians were mobilized immediately; once the team was with Dolly, it was apparent that it was time to let her go," said Karl Kranz, chief operating officer of the Zoo.
Zoo officials believe her death was not due to any one issue, but instead combined illnesses associated with her declining health and age.
Dolly, believed to be 38 to 40 years old, came to the Maryland Zoo in 1982 and Baltimore school children raised pennies to help pay for her care.Copyright © 2015, The Baltimore Sun