[NEWS]
People have always wondered why many birds lay bright blue eggs. David Lahti of the City University of New York and Dan Ardia of Franklin & Marshall College tested the hypothesis that pigmentation might help an egg strike a balance between two opposing and potentially damaging effects of the sun: light transmission into light-colored eggs, and heating up of dark-colored eggs. As predicted, more intensely blue eggshells shielded the interior from light, including dangerous UV radia…