Blind, slow and 500 years old – or are they? How scientists are unravelling the secrets of Greenland sharks - The Guardian

Recent research has shed light on the Greenland shark, a remarkable species that can live for centuries, with some individuals estimated to be around 500 years old. Scientists are exploring the unique adaptations of these sharks, particularly their ability to maintain vision despite their dark, cold habitat in the Arctic and North Atlantic oceans. This investigation into their biology not only reveals insights about the sharks themselves but also holds potential implications for understanding human vision and longevity. The enduring interest in Greenland sharks reflects broader themes of resilience and adaptation in extreme environments. Their longevity challenges conventional notions of aging and survival, prompting scientists to consider how these traits might inform human health and longevity. As researchers delve deeper into the biology of these ancient creatures, they uncover parallels with other long-lived species, highlighting the importance of studying biodiversity in understanding life processes. The Greenland shark serves as a symbol of nature's mysteries, reminding us of the interconnectedness of life and the potential for scientific discovery to inform our understanding of both marine ecosystems and human health. This ongoing research is likely to resonate well beyond the immediate news cycle, as it taps into fundamental questions about life, aging, and the preservation of vision.