KNOXVILLE — Queen Nipper, the oldest Lar gibbon in the United States, died at nearly 59 years old. The average lifespan of a Lar gibbon is about 25 years.

Queen Nipper was given to Zoo Knoxville in 1974 as a gift from theatre director Clarence Brown. She was wild-caught and sold into the pet trade before arriving at the zoo, according to Save Animals From Extinction. In 1990, she moved to Opryland and resided there for several years before returning to Zoo Knoxville in 1997.

While at Zoo Knoxville, Queen Nipper gave birth to five offspring. She was a very picky eater and would only go outside when it was at least 65 degrees and sunny. She got her name because, allegedly, whenever she heard a baby cry, she would try to nip at the person holding the baby.

"Known to guests and her loving caregivers as 'Queen Nipper,' she left an unforgettable mark on everyone who knew her. Her personality, presence, and legacy will continue to be remembered, and she will be greatly missed," Zoo Knoxville said. "Nipper was an incredible ambassador for Lar gibbons, helping generations of guests connect with and learn about these remarkable primates."

Lar gibbons are listed as an endangered species due to habitat loss, hunting, and the illegal pet trade. Gibbons as a group are among the most threatened primates in the world.