Can bees see colors we can't?
Photo: Flickr user automania
What does the world look like to a bee?
What we see as sunlight reflects from objects – and all visible light is part of a larger spectrum of energy. Bees can see ultraviolet – a color humans can only imagine – at the short-wavelength end of the spectrum.
Many flowers have ultraviolet patterns on their petals, so bees can see these patterns. They use them as visual guides – like a map painted on the flower – directing them to the flower’s store of nectar. Some flowers that appear non-descript to us have strong ultraviolet patterns. But bees can’t see red – at the longer wavelength end of the spectrum – while humans can. Red looks black to bees.
Bees’ eyes are different from our eyes in other ways as well. For example, honeybees can perceive movements that are separated by 1/300th of a second. So if a bee flew into a movie theater, it could differentiate each individual movie frame being projected. Also, every bee has five different eyes. Three are simple eyes that discern light intensity. Two are large compound eyes used to detect movement. Each of these eyes contains almost 7,000 lenses.
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