Assertion: river otter | /r/CapableOf | originate following migration
Facets:
value: across the bering land bridge
type: LOCATION
value: from the old world river otters
type: LOCATION
Source sentences:
text: The New World river otters originated from the Old World river otters following a migration across the Bering Land Bridge, which existed off and on between 1.8 million and 10,000 years ago.