也许在君主蝶聚会的时候其中一只会说：“嘿，伙计们，百慕大阿卡西亚大街的琼斯夫人家刚种了乳草，有兴趣去来一口吗？”
one says at the Monarch Club, “Mrs Jones of Acacia Drive, Bermuda, has planted milkweed. Fancy a bit?
帝王蝶的幼虫以很多乳草属植物为食，包括一些包含高水平强心甾的类型。
Monarch caterpillars feed on any of dozens of species of milkweed plants, including some species that contain high levels of cardenolides.
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