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 ...

The oldest rhinoceros in the United States has died at a Tennessee zoo. Dolly was 56 years old. In a social media post Thursday, Zoo Knoxville said Dolly was euthanized after her mobility declined ...

KNOXVILLE, Tenn. (AP) — The oldest rhinoceros in the United States has died at a Tennessee zoo. Dolly was 56 years old. In a social media post Thursday, Zoo Knoxville said Dolly was euthanized ...

Today, there are only 27,000 rhinos, about 17,000 of which are southern white rhinos. Some 10,000 rhinos in Africa and Asia have been illegally killed for their horns in the last decade, the zoo says.