1 of America's oldest polar bears dies after outliving average life expectancy by 10 years

Little One was born at the Cleveland Zoo in 1989.

The second oldest male polar bear in the United States has died after outliving the median life expectancy for the species by more than 10 years.

The Cincinnati Zoo and Botanical Garden announced in a statement on Saturday that the 31-year-old polar bear -- known as “Little One” -- was humanely euthanized after suffering from renal failure that led to a rapid decline in his health and quality of life.

Little One was born at the Cleveland Zoo to parents Snowball and Nauyat on December 13, 1989, but moved to the Cincinnati Zoo in 2007 where he was beloved by both zookeepers and visitors alike.

According to the Cincinnati Zoo, Little One was matched with several females during his lifetime but never sired any offspirng with them in spite outliving the 21-year median life expectancy of an average male polar bear by more than 10 years.

“He was such a great bear. Very easy going. The cutest thing about him was how he did those leisurely armpit scratches,” said Cincinnati Zoo bear keeper Lisa Potter.

The most recent International Union for Conservation of Nature (IUCN) report, according to Cincinnati Zoo officials, estimates that there are only about 26,000 polar bears remaining in the wild and lists the animal as a “vulnerable species, citing loss of Arctic sea ice due to climate change as its most serious threat.”