Calli, a sea lion that was rescued after her mother died and hand-raised by people, has died at the National Zoo in Washington. Officials at the Smithsonian’s National Zoo and Conservation ...

Luke the lion, known for being both gentle and regal, was euthanized Wednesday at the National Zoo in Washington. “Luke was truly the ‘king’ of the great cats exhibit,” said Craig Saffoe ...

Luke, an African lion, at the Smithsonian’s National Zoo in Washington, D.C., was humanely euthanized on Wednesday, the National Zoo said. He was 17 years old. Luke was born in a private reserve ...

WASHINGTON — The Smithsonian’s National Zoo staff are mourning the loss of the 17-year-old lion. Veterinarians and staff determined that Luke’s long-term quality of life was considered poor ...

Nababiep, a female African lion affectionately called Naba, was humanely euthanized Sept. 26. She was 18 years old. (Courtesy Smithsonian’s National Zoo and ... was born in Washington, D.C ...