The average life span of animals can vary widely from just a few years to over 100 years old. In most cases, their ages are based on stories, records, and pictures of the animals that date back several centuries.

Henry Tuatara (Sphenodon punctatus) 80 years old

Henry is estimated at least 80 years, possibly more than 100.

According to a 2017 article, Henry has been living at the Southland Museum in New Zealand for 46 years and is the oldest tuatara in existence. Since coming to the museum, Henry has served as a mascot for New Zealand, often posing for photos and visiting with foreign dignitaries.

Timothy Spur-thighed Tortoise (Testudo graeca) 160 years old

Timothy (c.1844 – 2004)

Timothy was a female spur-thighed tortoise that lived to be 160 years old. It was believed that she was born in Turkey and she was discovered on a Portuguese privateer captured by Captain John Courtenay Everard of the Royal Navy in 1854.

Harriot Galápagos Tortoise (Geochelone nigra porteri) 176 years old

Harriet (c.1830 – 2006)

Harriot is not only known for her long life, but also for her connection to Charles Darwin. Reportedly, she was collected by Darwin during his 1835 visit to the Galápagos Islands. Harriot spent her final years in the comfort of Steve Irwin’s Australia Zoo.

Jonathon Seychelles Giant Tortoise (Aldabrachelys gigantea hololissa) 186 years old.

Jonathan (c.1832 – Present)

Jonathon is currently believed to be the oldest current living land animal in the world. He was supposedly born in 1832 Although his age is unverified, a picture of Jonathan from 1886 exists and shows that he was fully matured at the time the photo was taken.

Tu’i Malila the Radiated Tortoise (Geochelone radiata) 188 years old.

Tu’i Malila (1777 – 1965)

Tu’i Malila’s was born sometime in 1777 and gifted to the royal family of Tonga by Captain James Cook .Tu’i Malila’s preserved body is on display at the Royal Palace of Tonga.

Hanko the Scarlet Koi Fish (Cyprinus rubrofuscus) 226 years old.

Hanako (1751 – 1977)

Hanako, the Scarlett Koi Fish was the longest living fish ever recorded. At the time of her death, she was an estimated 226 years old which was determined when his friend Professor Masayoshi Hiro counted the number of rings on two extracted scales.

Adwaita the Aldabra Giant Tortoise, 255 years old

Adwaita (c.1750 – 2006)

Adwaita the Giant Tortoise died in 2006 at an estimated age of 255 years old. At the time of Adwaita’s death, zoo officials from his home at the Alipore Zoological Gardens said that they wanted to carbon date his shell to determine Adwaita’s exact age. While there have been no recent updates on the research into Adwaita’s age, if it can be confirmed, he would be the oldest terrestrial animal to have ever lived.

Ming the Ocean Quahog Clam (Arctica islandica) 507 years old.

Ming (c.1499 – 2006)

Prior to Ming the clams demise in 2006, it was the oldest living animal in the world. Researcher, James Scourse explained that Ming was one of 200 clams that were collected live from Icelandic shelf in 2006. All 200 clams died when they were frozen to be brought back to the U.K. for research.

Initially, researchers thought Ming was about 405 years old, but new research released in 2013 stated that Ming was actually 507 years old the world’s oldest-recorded animal.