Curious about The 10 Longest Living Animals?
You know, in the grand scheme of things, us humans have got the short end of the longevity stick. We’re over here, celebrating our centenary like it’s a big deal, while some animals are just chilling for hundreds or even thousands of years. Talk about slow and steady wins the race!
Explore the oldest living animal on record with our dedicated article!
Some creatures can even slow or reverse the aging process.
Click below to jump to any section on the top 10 longest-living animals:
Key Points
| Animal | Lifespan | Notable Fact |
|---|---|---|
| Immortal Jellyfish | Indefinite | Officially the only immortal creature |
| Sea Sponge | Thousands of years | Survive in deep ocean, away from storms |
| Ocean Quahog | At least 200 years | Slow developers, start reproducing at six years old |
| Greenland Shark | Over 400 years | Longest-living vertebrate, survives in Arctic waters |
| Bowhead Whale | Over 200 years | World’s longest-living mammal, Arctic dwellers |
| Red Sea Urchin | Over 100 years, some 200+ years | Survive in harsh environments, some live over 400 years |
| Rough-Eyed Rockfish | Almost 200 years | Ideal for studying genetics of longevity |
| Freshwater Mussel Pearl | Long-lived, susceptible to changes | Valuable bioindicators for environmental health |
| Tube Worm | Over 300 years | Symbiotic relationship with bacteria, no predators |
| Galapagos Giant Tortoise | Over a century, some up to 175 | One of the longest-lived land vertebrates |
#1 Immortal Jellyfish
Scientists have made a groundbreaking discovery of a jellyfish capable of indefinite life. They officially recognize Turritopsis dohrnii, the Immortal Jellyfish, as the sole immortal creature. This extraordinary phenomenon involves the born-again polyp colony eventually blossoming and releasing medusae genetically akin to the damaged adult, creating an uncanny semblance of immortality. Since scientists stumbled upon this phenomenon in the 1990s, they affectionately named the species “the immortal jellyfish.”
This jellyfish is an impressive contender on our Top 10 longest living Animals list.
#2 Sea Sponge
Corals, sponges, and other organisms living deep in the ocean are protected from temperature changes and intense storms that can and frequently do kill animals in shallower seas.
As a result, they’ve evolved to live longer lives because they’re less likely to be injured by accident.
Sponge longevity estimates vary widely but are frequently in the thousands of years.
#3 Ocean Quahog
Ocean quahogs are among the world’s longest-living aquatic invertebrates. Ocean quahogs can live for at least 200 years off the coast of the United States, where the fishery takes place.
They develop slowly and do not begin reproducing until they are about six years old.
#4 Greenland Shark
Greenland sharks are genuine contenders on the top 10 longest-living animals and are the world’s longest-living vertebrate species, capable of surviving for centuries in the deep freezing waters of the Arctic.
According to a new study, the Greenland shark, a 5-meter-long predator, may live for more than 400 years, making it the longest-living vertebrate by at least a century.
#5 Bowhead Whale
Bowhead whales are the world’s longest-living mammals, with lifespans of over 200 years- making them a feature species on our top 10 longest living animals list.
This species is mainly found in the Arctic and is connected with ice floes. As a result, the melting and freezing of the ice impact its movement patterns. Bowhead whales, with their big skulls and muscular bodies, can break through sea ice up to seven inches thick. Except for the front region of the lower jaw, which is white and noticeably upturned, adult bowheads are entirely black.
They can grow up to 60 feet long yet leap entirely out of the water. Bowheads use baleen to filter their food by opening their lips and straining plankton from the surface, water column, or seafloor.
#6 Red Sea Urchin
According to some studies, urchins can live for over 100 years, and several 200-year-old urchins have been discovered on Vancouver Island. In field investigations, annual growth rates in Southeast Alaska are between 0 and 20 mm per year.
Can you believe these hardened creatures survive unforgiving environments for up to 200 years- some even surpassing 400 years, making them one of our top 10 longest living animals.
#7 Rough-Eyed Rockfish
Others, like the Rough-Eyed Rockfish, have been known to live for almost 200 years.
The wide range of rockfish life spans provided ideal conditions for studying the genetics of longevity.
#8 Fresh Water Mussel Pearl
A tiny larva, measuring about 0.6 to 0.7 millimeters in length, begins its life when an adult mussel expels it into the water amidst a mass of one to four million other larvae. Freshwater mussels, owing to their long lifespan and susceptibility to environmental changes, serve as ideal bioindicators.
#9 Tube Worm
The tube worm can live for over 300 years in an environment with a year-round abundance of food and no predators.
When the tube worm extends its petal-like plume – a gill-like organ for gas exchange – out of the top of its tube, it resembles a giant plastic straw with a delicate pink flower at the end.
They can grow over 1.5 meters long and feed by forming a symbiotic connection with bacteria that flourish in these leaks.
#10 Galapagos Giant Tortoise
More than 200,000 giant tortoises formerly roamed the Galapagos Islands; today, four species are extinct, and just 10% of the original population remains. The tortoise populations have been slowly rescued and eventually recovered.
Galápagos tortoises, popularly known as giant tortoises, comprise 13 different species. These reptiles have one of the longest lifespans of any land vertebrates, averaging over a century- How incredible is this? Breaking century barriers, this species has to be on the top 10 longest living animals list.
On record, the oldest tortoise lived to be 175. They are also the world’s most giant tortoises, with some specimens measuring over five feet long and weighing over 500 pounds.
Why do some animals live longer than others?
Body size is crucial, with larger animals surviving longer on average than smaller ones.
Environmental factors such as temperature influence how long animals live in some species, with a lower body temperature often indicating a longer lifetime.
Summary of The 10 Longest Living Animals
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