The world's oldest known alligator named Muja lives in the Belgrade Zoo and survived World War 2, during which the Zoo was almost completely destroyed, and the NATO bombing of Yugoslavia in 1999.
The tuatara, a lizard-like reptile native to New Zealand, can live well over 100 years. Henry, a tuatara at the Southland Museum in New Zealand, mated for the first time at the estimated age of 111 years in 2009 with an 80-year-old female and fathered 11 baby tuatara.
Debby, the polar bear, an inhabitant of the Assiniboine Park Zoo in Winnipeg, Canada, was the oldest polar bear and third-oldest bear species on record when she died in 2008, at the age of 42 years.
The longest living animal in the world is a deep-sea sponge called the Hexactinellid (Glass) Sponge from the Monorhaphis chuni species. It is estimated to be around 11,000 years old.
An orca named Granny is estimated by some whale researchers to be 104 years old. It had been captured with the rest of her pod in 1967 but was too old at that time for a marine mammal park, so was released. In 1967, Granny was estimated to have been born in 1911.
A Sumatran orangutan named Nonja died at the age of 55 in December 2007. She was claimed to be the oldest-living orangutan of her species.
Snooty, the world's oldest captive manatee lived at the South Florida Aquarium almost all his life. On his birthday, a cake of fruit and vegetables was made for him while the visitors sang him Happy Birthday. He died in 2017 at the age of 69.
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The oldest bat ever recorded was a Brandt's bat which was discovered in a cave in Siberia that had been banded in 1964, making the bat at least 41 years old.
One of the world’s oldest animal (excluding primitive metazoans) was “Ming” the clam at 507 years old. Unfortunately, Ming died when the scientists opened it up to count the growth rings.
The oldest bear on record was a European brown bear named Andreas living in the Arcturos Bear Sanctuary in northern Greece. He was at least 50 years old at the time of his death.