Tiny Chihuahuas Hold a Big Surprise: A Sliver of Coyote DNA

Summary
The breed is descended from indigenous canines, which may have been intentionally mixed with wild coyotes long before Europeans arrived in the Americas.
Description from The New York Times.
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Tiny Chihuahuas Hold a Big Surprise: A Sliver of Coyote DNA
The breed is descended from indigenous canines, which may have been intentionally mixed with wild coyotes long before Europeans arrived in the Americas.
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