Assertion: blue whale's population | /r/HasProperty | endangered
Facets:
value: by pcbs
type: OTHER
value: due to habitat loss
type: CAUSE
value: due to pollution
type: CAUSE
value: due to prey depletion
type: CAUSE
Source sentences:
text: Some local populations are considered threatened or endangered due to prey depletion, habitat loss, pollution (by PCBs), capture for marine mammal parks, and conflicts with human fisheries.