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Few species are as polarizing as these urbanites, but one thing is indisputable: Their ubiquity is a sign of their adaptability and success.
In 1850, Cooper anonymously published a book whose call for conservation won praise from Charles Darwin. It was largely forgotten—until recently.
A statement from David Yarnold, president and CEO of the National Audubon Society.
New research reveals a previously uncounted benefit of the Clean Air Act—at a time when the Trump administration is weakening its protections.