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Why do insects get attracted to light?

Usuall we see insects flying around a Street light , why do the get attracted to a luminous body?

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  • Anonymous
    1 decade ago
    Favourite answer

    Nobody really knows. There are many possible reasons why moths are attracted to light but the most obvious is that many moths use the moon to navigate at night. By keeping the moon in a particular position the moth can fly in a straight line and in the direction it wants. Unfortunately moths confuse bright lights for the moon and when they get close to the light they can't navigate properly and end up flying round and round in circles.

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  • 1 decade ago

    They think that it's the moon.

    Many insects evolved to navigate using the moon as a beacon - "head toward the bright light" is something that even a very limited brain can handle. Unfortunately evolution didn't anticipate that humans would come around and put up artificial lights everywhere, confusing the heck out of the poor bugs.

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  • Anonymous
    4 years ago

    There seems to be two theories: Moths are attracted to light because of their migratory nature. They travel long distances guided by stars and the moon. So, a light bulb may act as a proxy moon, Some disagree and suggest that moths actually veer away from the light source at the last minute. To the moth, the area just outside of the light appears darker. Moths, being nocturnal, head for the darkest patch - which is always just around the light. Personally I go with the moon theory.

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  • 1 decade ago

    THE INSECTS USE LIGHT (SUN & / BUT MOSTLY MOON) TO MOVE AROUND.They have evolved in that maner only. some insects have photosensitive chemicals that help them to eat other insects but these also attract the normal light( this i very rare as these insects are found only in the dark forest)

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  • 1 decade ago

    something with the moon - it controls everything.. the tides and thus the winds... and the bugs.. that's why bug lights aren't complete lights.. a blueish tone to them, simulating the moon

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  • 1 decade ago

    they think that thy are trapped in some thing and they trying to get out to the other side of light.

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  • 1 decade ago

    they use the sun as a navigation tool and confuse lights with the sun.

    Source(s): simple as that
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  • Anonymous
    1 decade ago

    i can only guess its because during the day it is lite and warm and the night air is cool so they find both light and warmth....Or their scared of the dark!

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  • 1 decade ago

    It is difficlt to read at night.

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  • 1 decade ago

    they think its bug heaven...

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