{"id":3197,"date":"2026-06-23T11:28:12","date_gmt":"2026-06-23T11:28:12","guid":{"rendered":"https:\/\/randanimal.com\/blog\/?p=3197"},"modified":"2026-06-27T17:02:38","modified_gmt":"2026-06-27T17:02:38","slug":"animals-with-the-longest-lifespan-in-the-world","status":"publish","type":"post","link":"https:\/\/randanimal.com\/blog\/animals-with-the-longest-lifespan-in-the-world\/","title":{"rendered":"Animals With the Longest Lifespans in the World"},"content":{"rendered":"\n

Most of us think of human life as a long one. We celebrate a person turning 80 or 90 as a remarkable achievement. But compared to some creatures sharing this planet with us, a human life is barely a blink. There are animals alive in the ocean right now that were born before the invention of the printing press. Longevity is just one of the many mysteries of animal biology. Another equally fascinating one is which animals manage to function without ever truly sleeping. Read about it in our article on which animal never sleeps its entire life.<\/a> There is a jellyfish that can technically live forever. This is a clam that witnessed the entire Ming dynasty from start to finish while sitting quietly on the ocean floor.<\/p>\n\n\n\n

This article covers the animals with the longest confirmed lifespans on earth, from tortoises on remote islands to deep-sea sharks that grow older than nations. Real scientists and researchers have verified every fact in this article, so you can read with full confidence.<\/p>\n\n\n\n

1. Immortal Jellyfish (Turritopsis dohrnii) <\/h2>\n\n\n\n

There is no better place to start than the only animal on earth that scientists describe as biologically immortal. The immortal jellyfish, known by its scientific name Turritopsis dohrnii, is a tiny creature measuring just 4.5 millimetres wide. It looks completely unremarkable. But what it can do is unlike anything else in the animal kingdom.<\/p>\n\n\n\n

When this jellyfish is injured, starved, or under severe stress, instead of dying, it simply reverses its life cycle. It shrinks back into a blob, sinks to the seafloor, and transforms itself back into a polyp, which is its juvenile stage. From there, it grows back into an adult jellyfish again. According to Wikipedia’s entry on Turritopsis dohrnii<\/a>, this process can theoretically go on indefinitely, giving the jellyfish no fixed maximum lifespan.<\/p>\n\n\n\n

The Natural History Museum in London explains this process through a mechanism called transdifferentiation, where one type of fully formed adult cell converts into a completely different type of cell. <\/p>\n\n\n\n

The immortality was actually discovered by accident. In the 1980s, two biology students named Christian Sommer and Giorgio Bavestrello were monitoring a jar of jellyfish polyps. When they checked again later, they found newly settled polyps instead of the adult medusae they expected. The jellyfish had reverted to an earlier stage without anyone realising what they were witnessing.<\/p>\n\n\n\n

\"Animals<\/figure>\n\n\n\n

2. Glass Sponge \u2014 Up to 15,000 Years<\/h2>\n\n\n\n

The glass sponge sits in a category entirely of its own when it comes to confirmed age. These ancient creatures, found mostly at ocean depths below 450 metres, have been estimated to live for up to 15,000 years. That means some glass sponges were alive before humans invented agriculture.<\/p>\n\n\n\n

According to BBC Science Focus<\/a>, glass sponges build delicate, lattice-like skeletal structures made of pure silica, which is the same material as glass. Scientists thought they had gone extinct until an entire reef of them was discovered on a deep Canadian ocean floor in 1987. Their estimate came out at roughly 11,000 years old, with a margin of error of plus or minus 3,000 years.<\/p>\n\n\n\n

Glass sponges have an extremely slow metabolism, which scientists believe is the key to their extraordinary lifespan. They barely move, barely grow, and barely consume energy. In the cold, stable darkness of the deep ocean, there is almost nothing to kill them except human activity. Bottom trawling and deep-sea mining are now serious threats to these 15,000-year-old creatures.<\/p>\n\n\n\n

3. Ocean Quahog Clam (Ming) \u2014 507 Years<\/h2>\n\n\n\n

If you want a confirmed, documented lifespan with a hard number attached to it, look no further than Ming the clam. In 2006, a team of scientists from Bangor University was collecting ocean quahog clams, known scientifically as Arctica islandica, off the coast of Iceland. When they counted the rings on one particular clam’s shell, the way you would count rings on a tree trunk, they reached 507.<\/p>\n\n\n\n

That clam had been alive since 1499. It was born during the reign of King Henry VII of England, just seven years after Christopher Columbus first reached the Americas. Journalists nicknamed it “Ming” after the Chinese dynasty that was ruling at the time of its birth, though in Iceland it is known as “Hafrun,” meaning mystery of the ocean. According to Wikipedia<\/a>, another ocean quahog specimen was recorded at 374 years, suggesting extreme old age is not unusual for this species.<\/p>\n\n\n\n

Tragically, Ming died when researchers froze it as part of the collection process. The clam had survived more than five centuries in the Atlantic Ocean and met its end in a laboratory freezer. Discover 10 incredible animals that can survive the longest without food <\/a>and learn the unique adaptations that help them endure extreme conditions.<\/p>\n\n\n\n

4. Greenland Shark \u2014 Over 400 Years<\/h2>\n\n\n\n

The Greenland shark holds the record for the longest-lived vertebrate animal on Earth. A 2016 study published in the journal Science used radiocarbon dating on the eye lenses of Greenland sharks and found that one female was approximately 392 years old, with a margin of error of plus or minus 120 years. That means she could have been anywhere from 272 to 512 years old. According to Smithsonian Magazine<\/a>, a shark that old was swimming around the Arctic at the same time William Shakespeare was writing his plays.<\/p>\n\n\n\n

These sharks live in the deep, freezing waters of the North Atlantic and Arctic Ocean. They grow at a rate of less than one centimetre per year and do not reach sexual maturity until they are around 150 years old. That alone is longer than any human being has ever lived. Their metabolism is so slow that scientists have described it as barely above a rock. Read More about the 10 Most Dangerous Animals in the World.<\/a><\/p>\n\n\n\n

In September 2024, an international team sequenced the Greenland shark’s genome and found it contains 6.5 billion base pairs, twice the length of the human genome. Many of the duplicate genes appear to be linked to repairing DNA damage in cells, which may explain how these animals manage to stay healthy for centuries.<\/p>\n\n\n\n

5. Giant Tortoise \u2014 Over 190 Years<\/h2>\n\n\n\n

Giant tortoises are the most famous long-lived land animals, and the most celebrated individual alive today is a Seychelles giant tortoise named Jonathan. He lives on the island of Saint Helena in the South Atlantic Ocean and is believed to be at least 192 years old as of 2024, making him the oldest living land animal on record. A photograph taken between 1882 and 1886 shows Jonathan as a fully mature adult, meaning he was already at least 50 years old at the time.<\/p>\n\n\n\n

In January 2022, Guinness World Records officially recognised Jonathan<\/a> as the oldest tortoise ever documented. His veterinarian, Joe Hollins, described him as a local icon and a symbol of persistence in the face of change.<\/p>\n\n\n\n

The reason tortoises live so long is rooted in their biology. According to a History.com article on the longest-living creatures on earth, giant tortoises never stop growing and never stop reproducing as they age. Their reproductive output actually increases as they get older, which means evolution has strong reasons to keep them alive and healthy. They effectively show almost no signs of biological ageing in the way that most mammals do.<\/p>\n\n\n\n

Another famous tortoise, named Harriet, was a Gal\u00e1pagos tortoise believed to have been collected by Charles Darwin during his voyage to the islands. She spent much of her life in Australia and died in 2006 at over 175 years old at Australia Zoo.<\/p>\n\n\n\n

6. Bowhead Whale \u2014 Over 200 Years<\/h2>\n\n\n\n

The bowhead whale is the longest-living mammal on Earth. These enormous whales, which can grow up to 20 metres long, inhabit the freezing waters of the Arctic and sub-Arctic. According to Discover Wildlife<\/a>, bowhead whales can live for 200 years or more.<\/p>\n\n\n\n

The key to their lifespan lies partly in their environment and partly in their genetics. Cold temperatures slow down metabolism, which researchers believe extends the lifespan of many deep-sea and Arctic creatures. But bowhead whales also carry genetic adaptations that appear to protect them against cancer and other age-related diseases. Large animals like whales generate enormous numbers of cells over their lifetime, which creates greater cancer risk. To manage this, bowheads have developed genes that essentially switch off uncontrolled cell growth.<\/p>\n\n\n\n

One of the most remarkable aspects of bowhead whale ageing was confirmed through old harpoon tips. Researchers found 19th-century harpoon fragments still lodged in the bodies of whales caught in the 20th century, proving that individual whales were alive during both periods \u2014 more than 100 years apart.<\/p>\n\n\n\n

7. Giant Barrel Sponge \u2014 Over 2,300 Years<\/h2>\n\n\n\n

The giant barrel sponge, found in the warm waters of the Caribbean, is one of the oldest known animals in its region. According to Wikipedia<\/a>, the largest specimens near Key Largo in Florida have been estimated to be over 2,300 years old. This species is sometimes called the “redwood of the reef” because of its enormous size and extraordinary lifespan.<\/p>\n\n\n\n

These sponges grow in shallow tropical waters and can reach over two metres in diameter. Scientists estimate their age by studying their growth patterns and comparing them to water temperature records over time. A sponge that is 2,300 years old was already ancient when the Roman Empire was at the height of its power.<\/p>\n\n\n\n

Like glass sponges, giant barrel sponges are now under serious threat from climate change. Warming ocean temperatures damage coral reef ecosystems, and these ancient animals are extremely slow to recover from bleaching events.<\/p>\n\n\n\n

8. Black Coral \u2014 Over 4,000 Years<\/h2>\n\n\n\n

Black corals are among the oldest individual animals ever found in the ocean. A specimen discovered in the Gulf of Mexico was estimated to be more than 4,000 years old, according to Wikipedia. Unlike stony corals, black corals build their skeletal structures from chitin, the same tough material found in insects’ shells.<\/p>\n\n\n\n

Thousands of tiny polyps work together to build and maintain the coral’s branching colony over thousands of years. They add rings to their skeleton annually, much like tree rings, which is how scientists can date them. The oldest black corals live in the coldest and deepest waters, where temperature stability and the absence of predators allow them to survive for millennia.<\/p>\n\n\n\n

Black corals are now heavily harvested for jewellery because their skeleton polishes beautifully. This has made many populations critically endangered, cutting short lifespans that took thousands of years to accumulate.<\/p>\n\n\n\n

9. Naked Mole Rat \u2014 Up to 37 Years <\/h2>\n\n\n\n

The naked mole rat deserves a place on this list not because of the raw number of years it lives, but because of how extraordinary that number is given its size. According to History.com<\/a>, naked mole rats live more than ten times longer than any other rodent species of comparable size. A mouse typically lives two or three years. The oldest documented naked mole rat reached 37 years old.<\/p>\n\n\n\n

These homely, nearly blind rodents from the underground tunnels of East Africa have fascinated scientists for decades. They appear to be almost completely resistant to cancer, which is remarkable for a mammal that lives so long. They also show very little physical decline as they age, maintaining active, reproductive lives well into their twenties. Biologists studying human ageing have spent years trying to understand the genetic and cellular mechanisms behind the naked mole rat’s unusual longevity.<\/p>\n\n\n\n

10. Jonathan the Tortoise \u2014 A Living Legend<\/h2>\n\n\n\n

We have already mentioned giant tortoises as a species, but Jonathan deserves his own brief spotlight as the most famous and individually verified long-lived land animal alive today. Born around 1832, Jonathan has lived through the entire modern era of human history. He was alive when Abraham Lincoln was president. He lived through both World Wars. Jonathan the Tortoise has outlasted every human head of state on earth many times over.<\/p>\n\n\n\n

Jonathan the Tortoise<\/strong> eats a diet of fruits and vegetables, enjoys the warmth of the Saint Helena sun, and, according to his veterinarian Joe Hollins, still has a strong appetite and remains sociable. His eyesight and sense of smell have faded with age, but he navigates his enclosure from memory and by touch.<\/p>\n\n\n\n

\"Animals<\/figure>\n\n\n\n

Jonathan is more than just an old animal. He is a living piece of natural history, a reminder that some creatures move through time on a completely different scale from the rest of us.<\/p>\n\n\n\n

Frequently Asked Questions (FAQs)<\/h2>\n\n\n\n

Q1. What is the longest-living animal in the world?<\/strong><\/h3>\n\n\n\n

The immortal jellyfish, Turritopsis dohrnii, is technically the longest-living animal because it has no confirmed maximum lifespan. It can reverse its biological ageing process indefinitely when stressed or injured. Among animals with a measurable, confirmed lifespan, the ocean quahog clam holds the record at 507 years for a single documented individual.<\/p>\n\n\n\n

Q2. How old is the oldest living animal on earth right now?<\/strong><\/h3>\n\n\n\n

Jonathan the Seychelles giant tortoise, living on the island of Saint Helena, is currently believed to be around 192 years old, making him the oldest confirmed living land animal. In the ocean, Greenland sharks estimated at over 400 years old are likely alive today, though individual sharks cannot be tracked over their lifetime.<\/p>\n\n\n\n

Q3. Can the immortal jellyfish really live forever?<\/strong><\/h3>\n\n\n\n

In theory, yes. The immortal jellyfish can revert to its juvenile polyp stage when under stress and then grow back into an adult. According to Wikipedia, this process has no known limit. However, in the wild, most individual jellyfish are eaten by predators or killed by disease before they can complete many of these regeneration cycles.<\/p>\n\n\n\n

Q4. Why do Greenland sharks live so long?<\/strong><\/h3>\n\n\n\n

Greenland sharks live in extremely cold Arctic waters, which slows their metabolism dramatically. They grow less than one centimetre per year and do not become sexually mature until around 150 years old. A 2024 genomic study also found that their DNA, which is twice as long as the human genome, contains a high number of genes linked to DNA repair, which likely helps them maintain cell health over centuries.<\/p>\n\n\n\n

Q5. How do scientists figure out how old an animal is?<\/strong><\/h3>\n\n\n\n

Different methods are used for different animals. For clams, scientists count annual rings on the shell just like tree rings. For Greenland sharks, researchers use radiocarbon dating on the protein in the eye lens, which forms at birth and never changes. Tortoises, verified historical records and photographs are often used alongside physical measurements.<\/p>\n\n\n\n

Conclusion<\/h2>\n\n\n\n

The animals on this list challenge almost every assumption we make about life and ageing. A clam quietly outliving empires. A shark born when Shakespeare was alive, still swimming the Arctic today. A jellyfish that simply refuses to die. A tortoise that has watched more than a century and a half of human history from its island home.<\/p>\n\n\n\n

What most of these long-lived animals share is a slow metabolism, a stable environment, and in some cases, remarkable genetic tools for repairing damage to their cells. Scientists studying ageing in humans have turned increasingly to these animals for clues. The bowhead whale’s cancer-resistant genes, the naked mole rat’s cellular repair systems, and the immortal jellyfish’s transdifferentiation process are all being studied as potential keys to extending healthy human life.<\/p>\n\n\n\n

The deep ocean is still largely unexplored. Scientists believe there are almost certainly species down there that are older, stranger, and more remarkable than anything we have found so far. Read More about Which Animal Never Sleeps Its Entire Life<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Most of us think of human life as a long one. We celebrate a person turning 80 or 90 as […]<\/p>\n","protected":false},"author":3,"featured_media":3198,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5],"tags":[118,120,119],"class_list":["post-3197","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-animal-facts","tag-longest-living-animal-in-the-world","tag-oldest-animal-ever-recorded","tag-what-animal-lives-the-longest"],"yoast_head":"\nAnimals With the Longest Lifespans in the World - Random Animal Generator<\/title>\n<meta name=\"description\" content=\"Discover the animals with the longest lifespan on earth from a 507-year-old clam to a jellyfish that never dies. 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