This article was first published on Dec 27, 2014, and updated on Dec 22, 2016
SINGAPORE - Celebrations have started for Singapore-born Inuka who will be turning 26 on Dec 26.
The 5-day birthday celebration includes filling the adored bear's cave with two tons of ice for him to explore, and special birthday enrichment sessions at 10.25am daily.
To kick off the celebrations, the Singapore-born Inuka was given a colourful ice cake created with some of his favourite foods - salmon, minced beef and peanut butter.
Born in 1990 at the Singapore Zoo in the early hours of December 26, Inuka is currently under a special senior animal care programme, with his daily needs taken care of by a team of dedicated keepers.
Inuka would be well in his 70s if he were human. Polar bears live an average of 15 to 18 years, although biologists have tagged a few bears in their early 30s.
According to Polar Bears International, the animals may live till their mid to late 30s in captivity.
Here are five other fun facts about polar bear Inuka.
1. His name
Inuka is Inuit for "Silent Stalker". The name was chosen through a nationwide naming contest, which recieved over 10,000 entries. Other entries included Arctos and Shardik.
2. His lineage
Born on Dec 26, 1990, Inuka's parents were from countries far from hot and humid Singapore. His mother Sheba arrived from Germany when she was 14 months old, while his father, Nanook, came from Canada.
3. His home
His current enclosure costs $8 million. His home, with much-needed space, is about the size of 2½ basketball courts and includes a large pool, waterfall and an ice cave.
Originally found in the Arctic, polar bears in the wild have been known to cover miles on foot, even running on land.
Researchers have even tracked wild females swimming long distances, covering up to 354km in ten days. Inuka would have to make more than 2000 rounds of his enclosure to cover that distance.
4. His weight
Though he weighed only 450 grams when he was born, Inuka currently tips the scales at 505kg, with keepers adjusting his diet to keep his weight as close as possible to the optimum 520kg. According to Polar Bears International, the largest polar bear ever recorded was a male weighing 1002kg!
5. His diet
Though polar bears hunt and feed on seals in the wild (for their blubber), Inuka is fed meat, fish, fruits, and vegetables. The big mammal eats nearly 30kg of food a day.