HARPURSVILLE, N.Y. (CBSNewYork/AP)April the Giraffe, who became internet famous when millions followed her pregnancy in 2017, has died.

A Facebook post by the Animal Adventure Park said April was euthanized Friday because of worsening arthritis

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“She is a precious member of our family, and while we knew this day would eventually come, our hearts are hurting,” Animal Adventure Park owner Jordan Patch said in a statement.

The 20-year-old giraffe started showing signs of mobility problems last summer, and veterinary imaging showed she had arthritis in her feet and problems in her left hind leg, the zoo’s veterinarians said in a statement. They noted that animals as large as giraffes can deteriorate quickly from arthritis. The average life expectancy for a giraffe in captivity is 20-25 years.

They said they deployed joint supplements, pain medications, anti-inflammatories, padded flooring, diet changes and trimming April’s hoofs to try to slow the disease’s progression, but her mobility kept declining, and she started spending a lot more time lying down. Imaging in March showed “significant and progressing degeneration” of joints in her lower leg, the vets said.

“The severity of her condition has been outpacing our ability to control April’s comfort,” they said.

April became a worldwide sensation when she carried her fourth calf at the zoo in Harpursville, New York in 2017. The zoo’s giraffe cam became the second most-watched livestream in YouTube history, at least at the time, with more than 232 million views and 7.6 billion minutes of live watch time over several months.

At least 1.2 million people watched as the male calf, eventually named Tajiri, was born — appropriately enough — in the month of April.

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An online fundraising campaign pulled in more than $150,000 for the care of April, her mate and the calf. Other ventures — including a Toys ‘R’ Us sponsorship of the YouTube stream, monetized text messages and a clothing line — also brought money to the zoo. The owners said it would be used for zoo upkeep, wildlife conservation in Africa and local children with unexpected medical expenses.

“April’s impact on animal conservation and appreciation is both immeasurable and lasting,” Patch said Friday.

But People for the Ethical Treatment of Animals criticized the zoo for turning April’s breeding into an internet event.

“The tragedy here isn’t that April died — it’s that she never knew a life without gawping spectators or livestream cameras,” said the animal-rights group’s supervising veterinarian, Dr. Heather Rally.

April had another calf, Azizi, in March 2019, with more than 300,000 people watching live on YouTube. Azizi died at a Texas zoo last October.

Animal Adventure Park said April was put on contraceptives to retire from the breeding program following his birth.

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(© Copyright 2021 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)

CBSNewYork Team