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.

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 following a decline in the ...

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