Certain species of tortoise can not only grow to fairly substantial sizes, but they can also live to rather ripe old ages. In fact, tortoises have the longest average lifespan of any animal, including human for that matter.
Adwaita, a Aldabra Giant tortoise that was brought to India in 1875 by Lord Wellesley, and died in 2006 lived for a recorded 150 years. A Galpagos tortoise by the name of Harriet was reputed to have been brought to England by Charles Darwin in 1835, after which she made her way to Australia, where she died in 2006 at the grand age of 175.
The oldest recorded tortoise, however, was Tu'I Malila, a Madagascan Radiated tortoise who was presented to the Tongan royal family in 1777 by Captain Cook. Tu'I Malila eventually died in May of 1965 at the age of 188 and is one of the oldest animals every recorded.
The oldest vertebrate ever recorded was a Koi fish by the name of Hanako whose age was placed at 228 years based on the growth rings of it's scales. A very rare occurrence when compared to the average Koi lifespan of 50 years.
