NPR reports
The rainbow of hues seen in modern bird eggs probably evolved in birds’ dinosaur ancestors, which had eggs with colorful and speckled shells.
That’s according to a new study of fossil eggs in the journal Nature. Researchers found that birds’ close dinosaur relatives had eggs with traces of two pigments—a red-brown one and a blue-green one. This same pair of pigments mixes and matches in today’s bird eggs to produce colors ranging from robin’s egg blue to red to yellow to green.
Read full story at Birds Got Their Colorful, Speckled Eggs From Dinosaurs : NPR
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