A cold-activated protein that repairs damaged DNA may contribute to the bowhead whale's remarkable lifespan of over 200 years.
The bowhead whale (Balaena mysticetus) can live for more than 200 years, thanks in part to a highly effective DNA-repair protein.
Despite its massive size and harsh Arctic habitat, the bowhead whale thrives, with a thick layer of blubber and a unique ability to smash through ice.
Author's summary: Scientists study the bowhead whale's secret to longevity.