Birds have more in common with dinosaurs than previously thought as new research showed Wednesday they inherited coloured eggs directly from their scaly ancestors. The evolutionary link between dinosaurs and birds has been recognised for centuries but ornithologists long believed that birds evolved their coloured eggs several times over history, mimicking local hues to help their eggs blend in. Birds are the only creatures known today to lay coloured eggs, and do so using only two pigments -- red and blue.
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