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Did any cat breeds develop naturally?

Some of the once-natural breeds are more closely connected to their roots than others are. Modern Siberian cats, for example, ...
The New York Times

But how much does breed shape a dog’s health and behavior?

Humans have a long history of reshaping their canine companions, which evolved from ancient wolves. At least 10,000 years ago, Arctic peoples were using selective breeding to create sled dogs, ...