What animal live the longest?

Answer 1

Polyp or Hydra

The Hydrozoan species Turritopsis nutricula is capable of cycling from a mature adult stage to an immature polyp stage, and back again, indefinitely. This means there is, theoretically, no limit to its life span, although no single specimen has been observed for any extended period and it is impossible to estimate the age of a specimen.

Antarctic Sponge

The Antarctic sponge Cinachyra antarctica has an extremely slow growth rate in the low temperatures of the Antarctic Ocean. One specimen has been estimated to be 1,550 years old.

Mollusk or Clam

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 lifespan of 374 years.

Koi Fish

A koi fish (Cyprinus carpio) named Hanako lived to the age of 226, from 1751 to 1977.

Tortoises

The longest-lived higher animals include several species of tortoise (family Testudinidae), known to live 150 years or more. One owned by the Tongan royal family lived 188 years.

See the related link for more information about the animals with the longest life spans.

Answer 2

There are many folkloristic legends about it; however the longest animal, living and ever lived, is said to be the ribbon worm Lineus longissimus, reaching more than 60 metres of lenght.

Answer 3

Well there's the tubeworm that lives from around 170-250 years, few species of tortiose that one lived to be 250, and a type of clam that usually lives over 100. ------------- The Hydra, it lives forever.

Answer 4

The ocean quahog, a species of clam found in the North Atlantic Ocean, is known to have a very long lifespan, with some individuals living over 500 years. Other long-lived animals include the Greenland shark, which can live for over 400 years, and the Aldabra giant tortoise, which can live for more than 200 years.