Visitors and staff at Zoo Knoxville are mourning the passing of the oldest rhinoceros in the United States. Dolly was a southern white rhino who spent decades living at the Tennessee zoo.

Dolly the Southern white rhino had to be euthanized due to medical issues at the Tennessee zoo where she had lived since 1976. Screengrab from Zoo Knoxville's Facebook post A 56-year-old ...

KNOXVILLE, Tenn. (WATE) — Zoo Knoxville is mourning the loss of Dolly, a 56-year-old Southern white rhinoceros and the the oldest rhinoceros in the United States, who was humanely euthanized ...

KNOXVILLE, Tenn. (AP) — The oldest rhinoceros in the United States has died at a Tennessee zoo. Dolly was 56 years old.

Zoo Knoxville announced Feb. 6 that Dolly the Southern white rhino had experienced severe mobility issues in recent days, leading to the decision to euthanize her. Dolly was born in South Africa ...