7 longest-living animals on Earth

Animals have limited lifespans, but some species defy time with extraordinary longevity. From red sea urchins to slow-moving reptiles, these creatures can live for centuries, revealing nature’s magical ability to preserve life across vast periods. Here we list some of the longest-living animals on Earth:

These are inhabitants of the great Pacific Ocean, and are known to have lived for more than 200 years now. Scientists and researchers found that these individuals show little sign of age-related decline, but their longevity is linked to slow metabolism and a stable marine environment. However, they remain in danger and are vulnerable due to overfishing and environmental changes.

Bowhead whales are specialised for staying in icy waters and are known to have a slow ageing process. They can live over 200 years, making them the longest-living mammal. Evidence suggests that 19th-century harpoon fragments are found in them, remarkably contributing to their lifespan and resilience in harsh environments.

Giant tortoises live very long lives, often exceeding 100 years. Some are believed to have lived over 200-250 years. These tortoises have slow metabolisms, calm natures, and a herbivorous diet that contributes to their longevity.

The Greenland shark is a slow-growing deep-sea predator that can live up to 500 years. It matures only after about 150 years. These sharks are used to the cold and harsh arctic waters, which likely contributes to their long and quiet lives.

With an impressive life span, nicknamed “Ming”, this species has lived for 507 years. Mostly found in the North Atlantic, it grows slowly in cold waters. Scientists determine its age by counting shell growth rings, much like that of trees, revealing lifespans that surpass centuries.

Once it has reached adulthood, this small jellyfish can essentially begin its life cycle anew by reverting to its polyp form. It inhabits oceans around the globe and is physiologically immortal because it can do this process over and over again. While it can still be killed by disease or predators, it avoids death from ageing.

The glass sponge forms long silica spicules as it exists deep in the water. One sample was estimated to be over 11,000 years old. These sponges live a very long time since they develop slowly under cold, dark conditions. They are considered some of the oldest living things on Earth by growth years.