UC Berkeley study finds genetic mutations in monarch butterfly predators

Photo of monarch butterflies on a branch
Lincoln Brower/Courtesy
Researchers from UC Riverside and UC Berkeley found that some predators of monarch butterflies evolved to have genetic mutations that allow them to eat milkweed, a plant containing poisonous toxins typically consumed by insects with milkweed toxin-resistant mutations.

According to a study from UC Riverside and UC Berkeley researchers, some predators of monarch butterflies have evolved genetic mutations that allow them, too, to eat poisonous milkweed, making butterflies fair game for their food.
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