Greenland sharks have defied centuries of aging, and a recent study has cracked the code to their remarkable longevity. What can we learn from these ancient predators about maintaining our own health and vitality?
The Longevity Secret of Greenland Sharks
Greenland sharks are renowned for their remarkable ability to live for centuries without succumbing to age-related degeneration. A recent study has shed light on the genetic adaptations that enable these creatures to maintain their vision and physical health over such an extended period.
Greenland sharks (Somniosus microcephalus) are one of the largest predatory fish in the world, reaching lengths of up to 24 feet.
They have a unique characteristic: their flesh is said to contain a toxin called trimethylamine oxide, which can be toxic to humans.
Greenland sharks are slow-moving and feed on small fish, marine mammals, and carrion.
Their estimated lifespan is around 272 years, making them one of the longest-living vertebrates.
Understanding the Science Behind Their Longevity
Researchers at the University of Basel, Switzerland, conducted a comprehensive analysis of the eyes of eight deceased Greenland sharks (Somniosus microcephalus). The study revealed that despite living for up to 400 years, these sharks show no signs of retinal degeneration. This finding is particularly intriguing given the sharks’ deep-sea habitat, where visibility is limited.
Genetic Adaptations
The research team sequenced the DNA of the Greenland sharks and identified specific genetic adaptations that contribute to their remarkable longevity. These findings suggest that the sharks have evolved unique mechanisms to maintain their physical health and vision over centuries.
Implications for Human Health
While the study focuses on the Greenland shark’s remarkable longevity, its implications extend beyond the scientific community. Understanding the genetic adaptations that enable these creatures to thrive in extreme environments may hold clues for human health and aging.
The extraordinary ways species control their own evolutionary fate
In humans and most other animals, aging is a complex process driven by various factors. However, certain species have evolved remarkable strategies to maintain their physical health and adaptability over time.
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- newscientist.com | How Greenland sharks live for hundreds of years without going blind
