Planet Earth is full of biodiversity, where millions of animals and insects have coexisted for thousands of years. However, there are species that possess impressive longevity. Here we tell you What is the oldest animal in the world?.
What is the oldest animal in the world, according to science?
The Greenland shark (Somniosus microcephalus) belongs to the family of Somniosidae or sleeping sharks, named for its slow swimming activity and its non-aggressive nature. It is famous for having the longest known life expectancy of all vertebrate species, estimated to be over 500 years.
Currently, the oldest shark of this species was last seen in January 2024, and scientists estimate that it is 519 years old.Since its birth was in 1505, approximately, it usually swims at depths of more than 2,000 feet. This has displaced the bowhead whale, an animal with which it shares its habitat, from first place.
Planet Earth is full of biodiversity, where millions of animals and insects have coexisted with each other for thousands of years. However, there are species that have an impressive longevity, and here we tell you What is the oldest animal in the world?.
What is the oldest animal in the world, according to science?
The Greenland shark (Somniosus microcephalus) belongs to the family of Somniosidae or sleeping sharks, named for its low swimming activity and its non-aggressive nature. It is famous for having the longest known life expectancy of all vertebrate species, estimated to be over 500 years..
Currently, the oldest shark of this species was last seen in January 2024, and Scientists estimate that it is 519 years old.since his birth was in 1505, approximatelyIt usually swims at depths of more than 2,000 feet, and has displaced the bowhead whale, an animal with which it shares its habitat, from first place.
Why is the Greenland Shark so long-lived?
The Greenland shark’s longevity is attributed to a number of factors, including:
- Slow metabolism: Greenland sharks have extremely slow metabolisms, which allows them to conserve energy and live longer. This slow metabolism also means they grow very slowly.
- Cold water habitat: Greenland sharks live in the icy waters of the Arctic and North Atlantic Oceans. Cold water temperatures slow down metabolic rates, contributing to their longevity.
- Deep-sea environment: Greenland sharks spend most of their lives in the deep sea, where there is less predation and fewer environmental stressors. This protected environment allows them to live longer lives.
- Resilient DNA: Research suggests that the Greenland shark’s DNA is particularly resistant to damage, which may contribute to its longevity.
How do scientists estimate the age of a Greenland shark?
Since Greenland sharks don’t have traditional growth rings like trees or fish scales, scientists use a technique called **radiocarbon dating** to estimate their age. This method involves analyzing the carbon-14 content in the eye lens of the shark, which can provide a reliable estimate of its age.
Greenland Shark: A Unique and Fascinating Creature
The Greenland shark is a fascinating creature that embodies the resilience and longevity of life on Earth. Its remarkable lifespan makes it a subject of ongoing scientific research, allowing us to better understand the secrets of aging and long life.
Other Notable Long-Lived Animals:
While the Greenland shark holds the record for the longest lifespan among vertebrates, there are other animals known for their impressive longevity:
| Animal | Lifespan | Location |
|---|---|---|
| Ocean Quahog Clam | 500+ years | North Atlantic Ocean |
| Bowhead Whale | 200+ years | Arctic and Subarctic Oceans |
| Tuatara | 100+ years | New Zealand |
| Galapagos Giant Tortoise | 100+ years | Galapagos Islands |
Benefits of Studying Long-Lived Animals
Studying long-lived animals like the Greenland shark can offer valuable insights into aging, disease resistance, and longevity. By understanding the mechanisms that allow these animals to live for such extended periods, researchers may be able to develop new strategies for promoting human health and extending human lifespan.
The Greenland shark, with its impressive age and slow-paced life, provides a fascinating example of the diversity and resilience of life on our planet. Its longevity reminds us that there is much to be discovered regarding the natural world and the secrets it holds.
