Longest living animal

  The longest lifespan of human beings is about 120 years old. How many years can the longest-lived animals live? It is said that the millennium king is the 80,000-year tortoise. In fact, the tortoise does not even rank in the top three.
  Aldabra giant tortoise

  In 2006, an Aldabra giant tortoise named Advita died at the Kolkata Zoo in India at the age of 255. The Aldabra giant tortoise is one of the largest and longest-lived tortoises in the world. Its body length is usually about 1.2 meters and its average weight is 250 kilograms. It spends 8-9 hours foraging and 2-3 hours in the sun a day sun. Perhaps because of this slow-paced “health” life, Aldabra giant tortoises grow slowly and live longer.
  Adevita has lived in the zoo for more than 100 years and has changed 3 keepers. It can be regarded as an iron tortoise and a water breeder.   The Greenland
  shark can grow up to 5 meters in length and is the longest-lived of all known vertebrates.   In 2016, researchers dated 28 Greenland sharks, showing that the oldest lived at least 272 years. The growth rate of Greenland sharks is very slow, growing 0.5 to 1 cm per year, and they will not be able to obtain fertility until they are about 150 years old, which means that they have to live for a century and a half before they can have a partner.   The Greenland shark swims slowly in the cold ocean, and its speed and tail beat frequency are the slowest and lowest among all fishes, which may be related to its very slow metabolism and extremely long lifespan.   deep-sea cold-water tubeworm

  Tubeworms are deep-sea, worm-like invertebrates that anchor themselves to the ocean floor with their tails and secrete a mineral tube around their body into which the soft body retracts.
  A study published in 2017 showed that some individuals of a species of tube worm living in the Gulf of Mexico lived to be over 300 years old. These tubeworms can grow up to 1.5 meters long, with feathery gill-like organs protruding from the end of the tube, which looks like a flower stuck on a large straw. They will live in clusters of 5 to 200 life forms near the vents of submarine cold seeps at a depth of 1,000 to 3,300 meters. There is a lot of food and a lack of predators here, which helps them reduce mortality and prolong their lifespan.
  Arctic clam
  In 2006, British researchers collected an arctic clam from the seabed of Iceland and then frozen it. Afterwards, by measuring the texture of tree rings on the clam shell, the researchers found that one of the clams had a lifespan of up to 405 years. It was born during the Ming Dynasty in China, so it was named “Ming” . However, the rare, old round clam had been frozen to death.
  In 2013, researchers measured its shell texture again and found that the previous estimate of Ming’s age was wrong, and it should have been 507 years old when it was captured. Although the age has increased by 100 years, fortunately, his birth year was still in the Ming Dynasty, so there is no need to change his name.
  Glass sponges
  Sponges are one of the oldest and simplest primitive multicellular animals in the world. They appeared in the ocean 600 million years ago. They have no head, tail, trunk, limbs, or even organs. They are fixed on the seabed and passed through The small pores all over the body filter the nutrients in the seawater to survive.
  Not only do they live early, sponges are also among the longest-lived animals. A 2012 study showed that a glass sponge found at a depth of about 1,110 meters in the East China Sea was about 11,000 years old. That is to say, it existed before human beings developed civilization.
  The researchers say that such a long-lived sponge may be a “paleoclimate archive”, and its body may record changes in the Earth’s climate in the distant past.