Monarch Butterflies Shrink, Get Paler After Skipping a Meal

April 16, 2014 10:09 AM

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Brilliantly colored monarch butterflies literally are what they eat—and missing even one meal can be harmful, a new study says.

New experiments show that the insects‘ vibrant colors are the result of a good diet as larvae—and that just 24 hours without food can significantly dull a butterfly’s colors, which can range from yellow to nearly red, said study leader Andrew Davis, an ecologist at the University of Georgia in Athen...

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