LOS ANGELES (CNS) — Evelyn, a 46-year-old western lowland gorilla and the oldest gorilla in the history of the Los Angeles Zoo, has been euthanized after “experiencing health issues leading to a decline in her quality of life over the last couple of weeks,” the zoo announced Wednesday.

“We are heartbroken to share that animal care and veterinary staff made the difficult decision to euthanize” the gorilla, zoo officials announced on Twitter.

Evelyn was an LA native, having been born at the zoo in 1976.

While western lowland gorillas can live 30 to 40 years in the wild, the zoo attributed Evelyn’s longevity to “the incredible care provided to her by our animal care and veterinary teams.”

“We are all so deeply saddened over the loss of Evelyn,” Tania Prebble, one of the zoo’s animal keepers, said on the Twitter thread announcing the gorilla’s passing. “Words cannot describe how much love and joy she gave everyone over her 46 years of her life. Personally, working with her these last 15 years has been a blessing.

“I will always cherish the one-on-one moments I had with her. She will never be forgotten by her gorilla family, human family, nor her adoring zoo family.”

Zoo officials said Evelyn was known for her red hair and “independent and charismatic personality.”

In addition, officials said, “she provided a watchful eye over the newest youngster, Angela, and had been a wonderful family member to Kelly, N’Djia and Rapunzel.”

Evelyn made big news locally in October 2000 when she briefly escaped her habitat, apparently by means of some hanging foliage.

It prompted the zoo to be evacuated — although a zoo official said at the time that gorillas are “gentle giants” for the most part, and will not attack in most instances unless someone is aggressive toward them.

Evelyn was loose for about an hour and 15 minutes, and during her adventure, she “poked flowers, swatted at butterflies, played hide and seek with anxious zoo keepers and even went for a stroll to see orangutans, giraffes and elephants,” as the Los Angeles Times reported back then.

With media helicopters starting to gather above, zoo workers eventually used a tranquilizer dart on Evelyn, rather than wait for her to go back to her habitat voluntarily. She eventually wandered into a men’s room, felt the effects of the dart, and was returned to her habitat. No one was hurt.