Assertion: zebra's population | /r/HasProperty | reduced their numbers
Facets:
value: severely
type: DEGREE
Source sentences:
text: Because drought and an increasing human population have severely reduced their numbers, the World Conservation Union lists Grevy's zebra as an endangered species [source: ):
text: Because drought and an increasing human population have severely reduced their numbers, the World Conservation Union lists Grevy's zebra as an endangered species [source: National Zoo ].