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The dog, Canis familiaris, is a direct descendent of the gray wolf, Canis lupus: In other words, dogs as we know them are domesticated wolves. Not only their behavior changed; domestic dogs are different in form from wolves, mainly smaller and with shorter muzzles and smaller teeth.

# data[].attributes.subject
The dog, Canis familiaris, is a direct descendent of the gray wolf, Canis lupus: In other words, dogs as we know them are domesticated wolves. Not only their behavior changed; domestic dogs are different in form from wolves, mainly smaller and with shorter muzzles and smaller teeth.

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30,000 years ago (more than 10,000 years before the domestication of horses and ruminants). This started when wolves began scavenging food scraps from humans, who then began to domesticate the wolves providing them with shelter and protection. In return, the wolves helped the human hunter-gatherers with hunting. As these domesticated wolves were breeding, over 1,000s of years they became dogs as we know them today. 

# data[].attributes.subject
30,000 years ago (more than 10,000 years before the domestication of horses and ruminants). This started when wolves began scavenging food scraps from humans, who then began to domesticate the wolves providing them with shelter and protection. In return, the wolves helped the human hunter-gatherers with hunting. As these domesticated wolves were breeding, over 1,000s of years they became dogs as we know them today. 

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The oldest known dog skeletons are found in the Altai Mountains of Siberia and a cave in Belgium, dated ~33,000 years ago.

# data[].attributes.subject
The oldest known dog skeletons are found in the Altai Mountains of Siberia and a cave in Belgium, dated ~33,000 years ago.

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When livestock were domesticated about 7,000 to 9,000 years ago, dogs served as herders and guardians of sheep, goats, and cattle

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When livestock were domesticated about 7,000 to 9,000 years ago, dogs served as herders and guardians of sheep, goats, and cattle

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DNA analysis published in 1997 suggests a date of about 130,000 years ago for the transformation of wolves to dogs.

# data[].attributes.subject
DNA analysis published in 1997 suggests a date of about 130,000 years ago for the transformation of wolves to dogs.