Najin spends a lot of time by herself these days because her rebellious daughter prefers to hang out with her best friend.

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

Zoo Knoxville said goodbye to a beloved southern white rhino named Dolly, who was the oldest rhinoceros in the United States at 56 years old. The zoo says Dolly was euthanized after her mobility ...

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 rhino's ...

She was one of the first white rhinos at the Knoxville zoo, where she had lived since 1976. The southern white rhino raised 10 calves throughout her life and could be fiercely protective of them ...