11.   Apparently uncontrolled incursions into a national park in the northern Indian state of Rajasthan are threatening the survival of its fast-dwindling population of tigers.

12.   As a result, the hydroids have become one of the chief competitors of the commercial fish and may threaten their survival, Bollens said.

13.   A properly balanced diet is especially important to preserving species whose survival is threatened or endangered in the wild.

14.   A properly balanced diet is especially important to preserving those animals whose survival is threatened or endangered in the wild.

15.   But a lack of support would cause Netanyahu political embarrassment at the least and possibly threaten the survival of his coalition government.

16.   But lack of a majority in his cabinet would cause political embarrassment at the least and possibly threaten the survival of his government.

17.   Employers were able to convince workers that higher wages threatened the survival of most companies.

18.   Essentially, Deloitte is interested in acquiring Andersen without contracting the problems that crippled its financial health and threatened its survival.

19.   Even if Microsoft has earned its position honestly, the firm still exerts too much control over the computer business, and threatens the survival of competing firms.

20.   Farmers, herders and hunters and the poor economic conditions in most of the region continue to threaten the survival of the snow leopard.