Assertion: cetacean's population | /r/HasProperty | halved in 1970
Facets:
value: from 1.3 million
type: OTHER
Source sentences:
text: The African elephant population was halved in the 1970s and 1980s from approximately 1.3 million down to 600,000 as poachers slaughtered these majestic creatures to extract their ivory tusks.