Can Planting More Milkweed Save Monarch Butterflies? It's Complicated
Conservationists have long blamed farmers' use of pesticides for decimating the milkweed that monarch caterpillars like to eat. But scientists say simply planting more milkweed isn't the answer.
Đọc tiếp trên NPR
May 31, 2016 at 11:56PM
Environment
NPR News: Can Planting More Milkweed Save Monarch Butterflies? It's Complicated
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