Assertion: magpie's population | /r/CapableOf | become isolated
Facets:
Source sentences:
text: It appears that after the ancestral magpie spread over Eurasia, the Korean population became isolated, at which point the species crossed the Bering Land Bridge and colonized North America, where the two American magpies then differentiated.
text: It appears that after the ancestral magpie spread over Eurasia, the Korean population became isolated, at which point the species crossed the Bering Land Bridge and colonized North America, where the two American magpies then differentiated.
text: It appears that after the ancestral magpie spread over Eurasia, the Korean population became isolated and only after that was North America colonized via Beringia (a land bridge which joined present-day Alaska and eastern Siberia at various times during the Pleistocene ice ages), where the two American magpies then differentiated.