Assertion: remaining sea otter | /r/HasProperty | hunted to the edge of extinction
Facets:
value: in the 18th and 19th centuries
type: TEMPORAL
value: by fur traders
type: OTHER
Source sentences:
text: Hunted to the edge of extinction by fur traders in the 18th and 19th centuries, the few remaining sea otters (about 2,000 scattered in remnant colonies throughout the North Pacific rim) were first protected by the International Fur Seal Treaty in 1911.