CHICAGO (AP) — Officials say a 14-year-old lion at the Brookfield Zoo near Chicago fell into her enclosure’s dry moat and died less than two weeks after her mate was put down for age-related issues. The Chicago Tribune reports that the female African lion named Isis fell into the 15-foot deep moat on Monday morning. A zoo official says she was fine when a staffer checked on her but was spotted in the moat a half-hour later. Veterinary staff euthanized her after she didn’t show signs she’d recover. No one saw her fall and it wasn’t caught on camera. Staff say her death was unexpected and is being investigated.