We all have at least one friend that treats their dog like an actual human child. Scientists think you shouldn't be a hater: There’s 20,000 to 40,000 years of evolution causing them to behave that way ...

The crude view of evolution is often stark: a struggle for life in the wilderness, dominated by the strong, the cunning, the fierce, or the exquisitely camouflaged. And yet, who thrives today? Dogs.