1.   No one knows why Indiana bat populations are plummeting in Missouri, especially when populations have stabilized in other states.

2.   The numbers at which the elk population would theoretically stabilize have kept rising, well beyond what the scientists predicted.

3.   He gave very few details of the programs, but said he hoped the population would stabilize within two decades.

4.   Since the conservation programs began, poaching has declined and elephant populations have stabilized, officials said.

5.   While the university researchers said the hepatitis could devastate the tribe, other scientists note its population has stabilized during the last several years despite other outbreaks of disease.