Scientists revise understanding of Greenland shark vision

Scientists have discovered a previous misunderstanding about the vision of the Greenland shark. New findings indicate these sharks rely more on their sense of smell than their eyesight for hunting. This conclusion follows a study analyzing the eye structure and sensory capabilities of the species. The sensory adaptation is likely an evolutionary response to its deep, dark ocean habitat. The research provides a clearer picture of how the world's longest-living vertebrate navigates its environment.