Long-living animals:
- The Hydrozoan species Turritopsis nutricula is capable of cycling from a mature adult stage to an immature polyp stage and back again. This means that there may be no natural limit to its life span.However, no single specimen has been observed for any extended period, and it is impossible to estimate the age of a specimen.
- The Antarctic sponge Cinachyra antarctica has an extremely slow growth rate in the low temperatures of the Southern Ocean. One specimen has been estimated to be 1,550 years old.
- A specimen of the Icelandic Cyprine Arctica islandica (also known as an ocean quahog), a mollusk, was found to have lived 405 years and possibly up to 410. Another specimen had a recorded life span of 374 years.
- Some koi fish have reportedly lived more than 200 years, the oldest being Hanako, died at an age of 226 years on July 7, 1977.
- Some confirmed sources estimated Bowhead Whales to have lived at least to 211 years of age, making them the oldest mammals.
- Specimens of the Red Sea Urchin, Strongylocentrotus franciscanus, have been found to be over 200 years old.
- Adwaita, a Aldabra Giant Tortoise died at the (possible) age of 250 in March 2006.
- Tu'i Malila, a Radiated tortoise, died at an age of 188 years in May 1965, the oldest verified vertebrate.
- Harriet, a Gal?pagos tortoise, died at the age of 175 years in June 2006.
- The deep-sea hydrocarbon seep tubeworm Lamellibrachia luymesi (Annelida, Polychaeta) lives for over 170 years.
- Timothy, a Greek Tortoise, died at an age of 160 years in April 2004.
- Geoduck, a species of saltwater clam native to the Puget Sound, have been known to live over 160 years.
- George the lobster was estimated to be approximately 140 years old in January 2009.
- Jeanne Calment was the oldest human to have verifiable birth records. She was 122 years old at time of death.
- The tuatara can live well above 100 years. Henry, a tuatara at the Southland Museum in New Zealand, mated for the first time at the age of 110 years in 2009 with an 80-year-old female and fathered 11 baby tuataras.
- A female Blue-and-yellow Macaw named Charlie was reportedly hatched in 1899, which would make her 110 years old, as of 2009. Her age has not been independently confirmed and the claim may not be reliable. She is claimed to have formerly belonged to Winston Churchill, but Churchill's daughter denies the claim.
- Cookie, a Major Mitchell's Cockatoo resident at Brookfield Zoo, Illinois, USA is the oldest member of his species in captivity, at a verified age of 76, as of 2010.
