Assertion: red fox | /r/HasProperty | isolated for over 400,000 years
Facets:
value: from their old world counterparts
type: OTHER
value: from european populations
type: LOCATION
value: genetically
type: MANNER
Source sentences:
text: Gene mapping demonstrates that red foxes in North America have been isolated from their Old World counterparts for over 400,000 years, thus raising the possibility that speciation has occurred, and that the previous binomial name of Vulpes fulva may be valid.
text: (2012, 2014) indicates that North American red foxes have been genetically isolated from European populations for 400,000 years, prompting possible application of V. fulva to all North American red foxes.
text: Gene mapping demonstrates that red foxes in North America have been isolated from their Old World counterparts for over 400,000 years, thus raising the possibility that speciation has occurred.