Life
Dramatic gannet dive wins Bird Photographer of the Year competition
Henley Spiers took the top award in the annual contest, with shots of guillemots, penguins and a protective tawny frogmouth also in the running for the prize
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Henley Spiers took the top award in the annual contest, with shots of guillemots, penguins and a protective tawny frogmouth also in the running for the prize
The light-sensitive tissue of birds’ eyes is not supplied with oxygen by blood vessels – instead, it powers itself with a flood of sugar, and this may have evolutionary benefits