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road salt creating beefier butterflies
美國
animals
butterflies
caterpillars
environment
featured
geography
insects
minnesota
monarchs
muscles
road salt
sodium
weird
weird & wild
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monarch butterflies shrink, get paler after skipping a meal
墨西哥
animals
butterflies
coloration
ecology
featured
insects
larvae
migration
milkweed
monarch butterfly
monarchs
natgeo news watch
weird & wild
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食物
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you know you want to help (6-legged) monarchs. here’s how.
animals
butterflies
insects
milkweed
monarchs
more science
plants
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the earth is a machine
biology
ecology
editors column
environment
monarchs
systems biology
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