Whales tan to protect from sunburn, study finds

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Similar to humans getting a tan, new research shows that the skin pigment of whales increases in response to sunshine.

src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXzPbIW7WKhPkZIVtO2vRvJOtkIUbvapP9UCY1Ufkgdn_GpUO9UmdZEBLmqQw-WWnBD96oV4jh7HafzrDM1sKlfn2G92eZxaWWikQSeYPWDIuDWJUVd4OkgyfMl8M1OT5Agrix97mv17kL/s320/Whales.jpg" title="whales" width="320">Published in the journal Nature, the study reveals that some whale species get darker with sun exposure, incurring damage to their DNA, which accumulates with age.

Source: Here