“Is Your Dog Evolving? Scientists Reveal Shocking New Phase in Canine Development Driven by Human Life!”

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“And increasing friendliness seems to have changed these dogs’ biology, just as it did thousands of years ago.

“Service dogs fit into the life of their person in a way that many able-bodied dog owners want their pets to fit into theirs,” they added.

The first wave of dog domestication began between 40,000 and 14,000 years ago

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Back when humans were foragers, wild wolves started to slowly adapt to human settlements as a predictable food source, eventually becoming fascinated by and attracted to people rather than fearful of or aggressive toward them.

The second wave of domestication occurred after the Industrial Revolution. As disposable income increased, people began breeding dogs for specific physical traits that reflected their status.

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This gave rise to many of the 200 dog breeds now recognized by the American Kennel Club—a registry of purebred dog pedigrees in the United States.