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>The latest research indicates that bees use infrared light to navigate
>and locate food sources. This is probably what the teacher was looking
>for.
 
I think that you mean ultraviolet, which I have read that bees use to
locate the exact position of the sun (even through clouds).  As I
understand it, Bees do not see the far red (Infra Red) and not even as far
red as we see, thus a red light can be used in the dark without making them
fly.
 
.. george