What makes blueberries blue?
Community Rachel Sargent Mirus Community Rachel Sargent Mirus

What makes blueberries blue?

Like many eye-catching berries, blueberries contain pigment chemicals that selectively absorb some light wavelengths, reflecting the other colors back to our eyes for us to see. They also have a waxy layer, or bloom, that scatters and reflects blue light.

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The real story of the viceroy & the monarch
Community Loren Merrill Community Loren Merrill

The real story of the viceroy & the monarch

Monarch butterflies are noxious to potential predators because of the cardenolide toxins lacing their bodies, courtesy of the milkweed plants they fed on as larvae. Viceroy butterflies have no such defenses, so they act as a copycat, disguising themselves as monarchs. 

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