Assertion: mastiff's dog | /r/HasAspect | wolf
Facets:
value: as their genetic ancestor
type: OTHER
Source sentences:
text: One study (again questioned by experts) performed by China's Nanjing Agricultural University's Laboratory of Animal Reproductive Genetics and Molecular Evolution found that although all dogs have wolves as their genetic ancestor, the majority of dog breeds began to evolve and diverge from wealthy developers about 42,000 years ago, while the Tibetan Mastiff originated much earlier, 58,000 years ago.