Assertion: cetacean's population | /r/HasProperty | endangered
Facets:
Source sentences:
text: A great deal of interest has developed in the conservationalist community about the possibility of using captive breeding to sustain populations that would otherwise be endangered or eliminated by various artificial threats.
text: The Red List of the International Union for Conservation of Nature (IUCN) classifies Killer whales in the “Data Deficient” group (DD), but the reality is that some specific populations are already threatened.