Flowers use 'blue halo' optical trick to attract bees, say researchers

The blue light, which can sometimes be seen by humans, is cast by tiny ridges of different height and spacing on petals, scientists have discovered

Flowers might seem like one of life’s simple pleasures, but it turns out there might be more to them than meets the eye.

Researchers have discovered that certain species of flowering plants boast tiny ridges on their petals that, thanks to variations in their height or spacing, scatter light to cast a blueish hue over the blooms.

Computer models revealed the blue halo depends not on the architecture of the ridges, but on their level of disorder

Related: What to plant in tiny spaces to help bees and butterflies thrive

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