This shark can live 400 years. Its eyes barely seem to age

Greenland sharks may live for 400 years without experiencing typical age-related retinal decline, according to recent research. Scientists discovered healthy eye tissue and active proteins specially adapted for vision in the dark Arctic depths, along with efficient DNA repair mechanisms that preserve eye function across centuries. This remarkable finding could provide valuable insights into protecting human vision as we age and preventing age-related vision loss. The discovery opens new research avenues for understanding how certain organisms maintain cellular health over extremely long lifespans, potentially leading to therapeutic approaches for age-related eye diseases in humans.