11.   Diplomats said this was done to give the United Nations maximum flexibility as the situation evolved on the ground in Afghanistan.

12.   Even if life did evolve on Mars, some researchers think our prospects of finding actual fossils are slim.

13.   Iceberg, once known for its sweaters featuring cartoon characters, has evolved on more sophisticated lines.

14.   It could be the key to how life evolved on Earth.

15.   Its researchers study not only the possibility of alien life but how life began and evolved on Earth.

16.   Now scientists believe that these emissions may provide information that can help explain how life evolved on Earth.

17.   Now clay is not what a tree peony wants, since it evolved on the dry, mountainous slopes of northern China.

18.   The concept, after all, has evolved on a shifting landscape of law, history and politics.

19.   The design evolves on the rehearsal floor.

20.   The designs evolved on screen were E-mailed to a computer owned by a factory that specializes in building exotic forms.