The way that whales react to sunlight can shed new light on the human ageing process, say researchers.
Some species react by getting darker with UV exposure in the same way as humans get a tan.
Others though, protect from themselves from sun burn by turning genes on and off.
The work, which is published in the journal Scientific Reports, could lead to new anti-ageing treatments in humans.
via BBC News – ‘Tanned’ whales’ sun response gives clues to human ageing.