Changes in North American ecosystems over the past 150 years have caused coyotes to move from their native habitats in the plains and southwestern deserts of North America to habitats throughout the United States. In a new study, researchers used DNA from coyote scat (feces) to trace the route that led some of the animals to colonize in Northern Virginia. The researchers also confirmed that, along the way, the coyotes interbred with the native Great Lakes wolves.
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