Butterflies are in decline across North America, a look at the Western Monarch]
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Butterflies are in decline across North America, a look at the Western Monarch]
Butterflies are in decline across North America, a look at the Western Monarch]
Source
Originally published on hacker news.
Read the full article: [Butterflies are in decline across North America, a look at the Western Monarch]](https://www.smithsonianmag.com/science-nature/butterflies-are-in-dramatic-decline-across-north-america-a-close-look-at-the-western-monarch-shows-why-180988582/)
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