Earth Matters : Cracking the mystery of how birds’ eggs are blue

By Katie Koerten

Last November I wrote an article for this column about the color blue in nature: how rare it is, and how difficult it is for nature to even produce it. To my delight, it garnered a lot of interest and curiosity, and even a letter to the editor with a story about why robins’ eggs are blue. I thought this a dazzling — and timely! — example of blue in nature to write about in springtime.

Published in Earth Matters on April 29, 2022.

Earth Matters : It’s not easy being blue in nature

By Katie Koerten

I’m a really big fan of color. When people ask me what my favorite color is, I explain, “Well, I have different categories of favorite colors.” The kids in my nature programs nod in understanding. You see, favorite things are important to kids, and you have to be specific when you’re talking about them. For example, my favorite color in the nature category? Blue.

Published in Earth Matters on November 26, 2021.

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