Assertion: mastodon's population | /r/HasProperty | survived until 1700 b.c.
Facets:
value: on the arctic wrangel island
type: LOCATION
Source sentences:
text: The woolly mammoth (Mammuthus primigenius) died out about 10,000 years ago, although a population of dwarf mammoths survived until 1700 B.C. on the Arctic Wrangel Island.