11.   Scientists were intrigued by the topic because the question bore strongly on the question of lunar origins.

12.   That tragic pattern is why the genetic syndrome, even though it is vanishingly rare, has long intrigued scientists who study the basic causes of cancer.

13.   The mystery of these dying stars has intrigued scientists for more than two centuries.

14.   WASHINGTON - Understanding how a small number of pre-human grunts and other sounds grew into complex modern languages is a problem that has intrigued scientists for ages.

15.   What especially intrigues scientists is that they have detected changes in the blobs in recent months.

16.   What intrigues scientists is that the four classes apparently exert their plaque-retarding benefits by different mechanisms.

17.   A spotted fish with large eyes found off the coast of northeastern Brazil baffled fishermen and intrigued scientists for years.

18.   In California, which has been dealing with fruit flies longer than Florida, scientists were intrigued by the borax idea.