Canis - Familiaris

domestic dog , scientifically known as Canis familiaris (or Canis lupus familiaris ), represents one of the most remarkable evolutionary success stories in biological history. As the first species ever domesticated by humans—predating agriculture and the domestication of livestock by thousands of years—dogs have transitioned from wild Pleistocene predators into diverse companions that occupy nearly every corner of the globe. Evolutionary Origins and Taxonomy

The lineage of Canis familiaris is deeply intertwined with that of the gray wolf ( Canis lupus ). While modern wolves are the dog’s closest living relatives, genetic evidence suggests they are "sister taxa," meaning they both likely diverged from a common, now-extinct wolf ancestor roughly 15,000 to 30,000 years ago. Taxonomically, while they were once considered a completely separate species, they are now often classified as a subspecies of the gray wolf due to their shared genetic profile (they differ by only about 0.2% of mitochondrial DNA) and their ability to interbreed. The Domestication Process canis familiaris

The transition from wild canid to domestic companion was likely a multi-stage process: domestic dog , scientifically known as Canis familiaris