Why do moths fly towards the light?

What purpose does it give and how did they actually evolve to like light? And why do they keep flying into it everytime?!!

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  • 1 decade ago
    Favorite Answer

    Moths are positively phototactic meaning they are drawn to light just as some insects are driven away by negative phototaxis. Moths are drawn to fly to moonlight or white light. This is speculated to be a predation escape method. Flying up to lit areas gets them away from shrews and other terrestrial or arboreal insectivores.

    Alternately moths may use the lunar glow to help them orient while flying in the dark. The sky is lighter than the ground so they see the gradient light to dark as a way to tell up from down. The moon may also help them navigate in general as they fly.

    http://www.cloudbridge.org/moths.htm

    There are moths that migrate, though most do not, they may use the night sky to orient their travels.

    http://www.cloudbridge.org/moths.htm

    http://austinist.com/2007/10/22/accidental_gent.ph...

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  • Raz
    Lv 4
    1 decade ago

    My old Ecology teacher told me that it's because they use the stars to find their way around and the artificial lights confuses them.

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  • 1 decade ago

    They have suicidal tendencies.

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