Some flowers create blue halo to say hello to foraging bees

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Some flowers create blue halo to say hello to foraging bees

This 2011 photo provided by Edwige Moyroud shows an Ursinia speciosa flower. The region at the base of the petals contains a dark pigment but appears blue at certain angles because of an optical effect on the surface of the cells. The color makes flowers more visible to the bees.
This 2016 photo provided by Edwige Moyroud shows a bumblebee foraging on an artificial flower with a region that appears blue due to an optical effect from microscopic ridges. The color makes flowers more visible to the bees. (Edwige Moyroud via AP)

Some flowers create blue halo to say hello to foraging bees

This 2011 photo provided by Edwige Moyroud shows an Ursinia speciosa flower. The region at the base of the petals contains a dark pigment but appears blue at certain angles because of an optical effect on the surface of the cells. The color makes flowers more visible to the bees.
This 2016 photo provided by Edwige Moyroud shows a bumblebee foraging on an artificial flower with a region that appears blue due to an optical effect from microscopic ridges. The color makes flowers more visible to the bees. (Edwige Moyroud via AP)
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