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The designation will create a nearly contiguous swath of protected land stretching from the state’s southern border to southern Nevada and the eastern Sierra Nevada, the analysis noted.

Given the wide distribution of the species, it would affect all 48 contiguous states, officials said — making it one of the broadest species listing ever considered.

But the contiguous United States covers more than 3 million square miles.

So preserving that contiguous shape — as opposed to, say, the asymmetry of SoFi Stadium or the Intuit Dome — took on a different importance.

The study analyzed county-level data on the annual use of 295 pesticides and prostate cancer rates across the contiguous United States.