All kinds of animals use conspicuous colors. Research from biologists at the University of Arizona found it's a quirk of evolution that started around 150 million years ago.

Earth Notes: Nature's Flashy Colors

Earth Notes, KNAU’s weekly environmental series, explores the Colorado Plateau by telling stories of the intricate relationships between environmental issues and our daily lives. Rooted in science and wrapped in human interest, the two-minute-long segments encourage listeners to think of themselves as part of the solution to environmental problems.

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Earth Notes: Nature's Flashy Colors

Earth Notes: Nature's Flashy Colors