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 ...

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 ...

SAN FRANCISCO - A critically endangered Western lowland gorilla, named "Oscar Jonesy," died on Thursday afternoon following a medical procedure at 43 years old, according to the San Francisco Zoo.

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 ...