Some flowers create blue halo to attract bees
Some flowers create blue halo to attract bees This 2015 photo provided by Edwige Moyroud shows a Hibiscus trionum flower. The region at the base of the petals contains a dark pigment but appears blue at certain angles due to an optical effect on the surface of the cells. The color makes flowers more visible to the bees. (Edwige Moyroud via AP)
Some flowers create blue halo to attract bees
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Some flowers have found a nifty way to get the blues.
They create a blue halo to attract bees. That's what scientists reported last Wednesday. Flowers need bees for pollination. Bees are drawn to the color blue. But it's hard for flowers to make that color in their petals.

Instead, some flowers use a trick of physics. They produce a blue halo when sunlight strikes a series of tiny ridges in their thin waxy surfaces. The ridges alter how the light bounces back. This affects the color that one sees.

The halos appear over pigmented areas of a flower. People can see them over darkly colored areas if they look from certain angles.

The halo trick is uncommon among flowers. But many tulip species are among those that can do it. Some kinds of daisy and peony species can do it, too. That’s according to Edwige Moyroud. She works at Cambridge University in England.

Moyroud and others analyzed the flower surfaces and used artificial flowers to show that bumblebees can see the halos. The study was published last Wednesday by the journal Nature.

An accompanying commentary said the paper shows how flowers that aren't blue can still use that color to attract bees. Further work should see whether the halo also attracts other insects, wrote Dimitri Deheyn. He is with the Scripps Institution of Oceanography. It is in La Jolla, California.

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Why don’t all flowers do this?
Write your answers in the comments section below

  • TraevonH-mac
    11/06/2017 - 01:01 p.m.

    not all flowers do this because it is hard to do.

  • MatthewB-mac1
    11/06/2017 - 01:05 p.m.

    I think that all flowers dont do this because i think theres this diffrent kind of pollin and thats its very rare and only a couple thousand flowers do this

  • KrisC-mac
    11/06/2017 - 01:08 p.m.

    because it is hard for flowers to make a blue halo. also the flower needs to have the right types of pedals

  • MichaelC-mac1
    11/06/2017 - 01:09 p.m.

    I don't think all flowers can do this because not all flowers have a lot of colors like the tulip so it can't produce the blue light (halo) that the tulip can. Also, in the article it says that halos appear in pigmented areas and you can see them in dark areas of the flower, and maybe some flowers don't have that darknees that flowers like the tulip have.

  • AnthonyA-mac1
    11/06/2017 - 01:12 p.m.

    All flowers don't do this because it is to hard to produce pollen and some flowers only have one color and other flowers can create a halo because they have more colors.

  • EveO-mac
    11/07/2017 - 12:09 p.m.

    This article was very amusing and very creative and cool. :)

  • TJW-mac
    11/07/2017 - 12:11 p.m.

    Not all flowers do this because not all flowers want bees to come near them.

  • MadisonC-mac1
    11/07/2017 - 12:12 p.m.

    I think the topic is very well written it is clearly stated and very clear to read. It is also very interesting I did not know that the flowers created blue halos to attract bee's when it is spring time. I think that it is very eduicational for kids.

  • ZeynapA-mac
    11/07/2017 - 12:12 p.m.

    I think this article might be true.So I think the flowers that bees come near just do this.

  • NickB-mac1
    11/07/2017 - 12:13 p.m.

    Some flowers can't do this because they can not produce a blue color.

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