During his 23 years of life, Paul, the oldest living tree kangaroo in the United States, was a favorite of visitors to Roger Williams Park Zoo in Providence.

The Matschie’s tree kangaroo was euthanized Tuesday after having complications from heart issues that reduced his quality of life, the zoo said on Facebook. He was 23 years, 5 months, and 5 days old. The median life expectancy for a tree kangaroo in a zoo is about 13 to 14 years.

“It is a great testament to the love and care Paul received from his keepers and veterinary staff that he lived such a long life,’’ said Jeremy Goodman, the zoo’s executive director, in the statement.

Paul was born at the Miami Metro Zoo in October 1994 and moved to the Providence zoo in 1997.

Matschie’s tree kangaroos are endangered due to habitat loss from logging, oil drilling, and mineral mining, Goodman said in the statement. The species is native to Papua New Guinea and the nearby island of Umboi.

Roger Williams spokeswoman Diane Nahabedian said Paul was “really charismatic’’ and loved meeting guests who visited the zoo.

“He would climb on the structures and do what tree kangaroos do,’’ Nahabedian said. “We do keeper talks every day, and Paul was a really good ambassador for the Matschie’s tree kangaroo species. They’re a cute species when you see them close.’’

Guests hoping to see a tree kangaroo aren’t out of luck — there are two others living at the zoo that are under age 10, Nahabedian said. “Most of us aren’t going to get to see a tree kangaroo up close in the wild,’’ she said.

Laney Ruckstuhl can be reached at laney.ruckstuhl @globe.com.