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10 of the Longest Living Animals in the Entire World

For many species, turning 100 years old is nothing special.

LITTLE CORN ISLAND, NICARAGUA: Elkhorn coral (Acropora palmata) on top of reef with divers in the background.Pete Niesen/Shutterstock

Elkhorn corals

Did you know that corals aren’t plants? They are actually colonies of tiny living invertebrates called polyps, and unlike plants, these corals capture their food rather than making it. An elkhorn coral also might be the longest living animal in the world. Researchers estimate that the elkhorn corals in Florida and the Caribbean may actually have originated more than 5,000 years ago, proving that they’re resilient little sea creatures. Check out these “facts” about animals you have all wrong.

Nature outdoor wild animalSahelan/Shutterstock

Bowhead whale

When it comes to whales, the Arctic-dwelling bowhead might not be the most familiar, but it does hold two distinct honors. First, the bowhead whale has the largest mouth of any animal; a mature male’s mouth may be one-third the size of its body. Second, bowheads can live to be more than 200 years old, making them the marine mammal with the longest lifespan.

An Aldabra giant tortoise looks out from its shell on Prison Island off Zanzibar, Tanzania. danm12/Shutterstock

Aldabra tortoise

The world’s longest living animal is an Aldabra tortoise named Jonathan, who arrived on the West African island of St. Helena way back in 1882. Now 186 years old, Jonathan has lost his vision and his sense of smell, but he isn’t living a lonely life. Since 1991 he’s been eating, sleeping, and mating with another giant tortoise. Their relationship made headlines last year when it was discovered during a veterinary visit that Jonathan’s girlfriend, Frederica, was actually a Frederic! Here are 45 more interesting facts about your favorite animals.

A close-up of a Quahog on the sandy beach of the Atlantic in Newport, Rhode Island on a blustery, overcast day during the hurricane season.Gretchen Gunda Enger/Shutterstock

Ocean quahog

Ming the ocean quahog might still be one of the world’s oldest animals if scientists hadn’t accidentally killed it at age 507. Born in 1499 and named for the ruling Chinese dynasty at that time, the Icelandic clam was minding its own business when researchers cracked opened Ming’s shell to count its growth rings—and killed it. Oops!

Sandtiger shark silhouette in Atlantic Ocean off Wilmington, North Carolina.EpochCatcher/Shutterstock

Greenland shark

The secret to the Greenland sharks’ longevity may be their super slow growth rate. Growing only 1 centimeter per year, Greenland sharks can live as long as 400 years, making them one of the longest-lived vertebrate on Earth. On average, though, they live to closer to 272 years. And because they age so slowly, Greenland sharks don’t start mating until they’re at least 150 years old!

Tube worms on the seagrass bed during low tideKim Pin/Shutterstock

Tubeworms

When it comes to longevity, the general rule of thumb is that larger animals live longer. So it makes little sense why tiny tubeworm species found deep in the Gulf of Mexico can live up to 250 years. Tubeworms living at the bottom of the ocean get all of their nutritional needs from bacteria, making their diet pretty bizarre too. For more weirdness, these are the most bizarre bug facts that will totally freak you out.

Laysan Albatross in flyWillyam Bradberry/Shutterstock

Laysan albatross

In 1956, a biologist named Chandler Robbins banded Wisdom, a Laysan albatross, on the Midway Atoll in the North Pacific Ocean. Robbins passed away at the age of 98 in 2017, but 67-year-old Wisdom is still alive. The world’s oldest known wild bird is also still laying eggs. So far she’s raised between 30 to 35 chicks, outliving several of her mates. Here are five more animals with unusual superpowers.

 

Detail of Tuatara - Sphenodon punctatus - head in tuatarium in IvercargillViktor Hejna/Shutterstock

Tuataras

The tuatara may be small at two-and-a-half feet, but it has a long history: The lizard-like animal is part of an order related to dinosaurs that roamed the Earth more than 200 million years ago. Now endangered, the remaining tuataras live in New Zealand, including the Southland Museum’s world-famous tuatara, Henry, who became a dad for the first time at age 110.

 

Red Sea Urchin (Strongylocentrotus franciscanus)Photographed during a dive around the Gulf Islands of southern British Columbia.NatureDiver/Shutterstock

Red sea urchins

The largest of all the sea urchins, red sea urchins were once thought to live for only seven to ten years. However, recent studies have shown that these Pacific Ocean residents are one of the longest living animals. They live up to ten times longer depending on their location. Red sea urchins in Southern California live approximately 50 years, while those found in Canada can live to 100—or longer, and some found in British Columbia are closer to 200 years old. Don’t miss these fascinating photos of the most colorful animals in the world.

Background of Jellyfish Japanese Sea Nettle (Chrysaora pacifica) poisionous jellyfish. Blue neon glow light effectchonlasub woravichan/Shutterstock

Jellyfish

When it comes to longevity, it’s hard to beat forever, but that’s how long the Turritopsis dohrnii can potentially live. This “immortal” jellyfish, only 5 millimeters long, can regenerate in a crisis. Rather than dying, the Turritopsis transforms its adult cells into younger cells and ages backward to polyps again. Death is not completely preventable, though; these jellyfish can be killed by predators or disease, especially in the polyp stage. Learn more about the other immortal animals that can basically live forever.