Seal pup once rescued on a British beach hits the big 5-0. Sheba may be the oldest seal in captivity

As gray seals go, Sheba is grayer than most.

The grand dame of the Cornish Seal Sanctuary was celebrated Saturday for her 50th birthday, far surpassing the lifespan of a seal in the wild and possibly being the oldest in captivity.

“Reaching 50 is a huge milestone, not just for Sheba but for everyone here who has been part of her journey,” said Tamara Cooper, curator at the facility in southwest England.

Things weren’t looking bright for the young pup when she was rescued from a Cornwall beach in September 1974.

Ken Jones found Sheba with a head injury and nasty eye infection and took her home where he and his wife, Mary, rehabilitated seals in a pool.

As Sheba grew up, so did the rescue operation, moving from Jones’ backyard to the Helford River in the village of Gweek and expanding to rehabilitate over 70 seal pups a year.

Sheba’s condition, including loss of vision, prevented her return to the sea and she’s now outlasted all of the other creatures who have come and gone, making her a favorite fixture at the facility.

Sheba’s longevity is attributed to the care she’s received and advances in veterinary medicine.

Seals typically survive 25 to 30 years in the wild, Cooper said. Females in captivity can live to 40 while males live to about 30.

Based on its research, the sanctuary staff believes Sheba is the oldest seal in captivity, said Heather Green, an animal care specialist

Spook, a male gray seal born at the New York Aquarium in 1965, was thought to be the oldest seal when he died weeks shy of his 45th birthday in 2010.

While Sheba’s well-known and well-liked by the public and her handlers, she’s not the most cooperative creature.

When she was raised by Jones, his focus was on rescue, rehabilitation and release, Green said. There was no training for the animals that stayed behind until more recent years.

She has been reluctant to learn new tricks, such as being rolled over for inspections of her belly, flippers, tails and teeth. When it comes to receiving drops for her milky eyes, she does well some days while on others she waddles her mottled-fur frame away and splashes back into the pool.

“She’s a bit stubborn,” Green said. “She’d been so used to just being fed and not having to work for her fish that even now she still protests slightly. If we ask her to do any behavior or something, it’s all on her own sweet time and she’ll definitely let you know if she’s up for training or not.”

At her so-called seal-abration, a brass band serenaded Sheba and visitors and staff sang “Happy Birthday.” Presented with a purple triple-layer cake made of ice and adorned with her name, the number 50 and several hearts, the guest of honor happily chomped on the small fish poking from the top.

“She’ll eat any fish,” Green said. “She’s not particularly fussy.”