21.   But these imaginative claims are a step or two ahead of what most scientists think can be proved.

22.   CERN scientists think they have spotted the Higgs particle, the most sought-after prize in particle physics.

23.   Chinese scientists are thinking of cloning giant pandas.

24.   Dreaming, some scientists think, plays a role in fixing long-term memories.

25.   Even though the final figure will undoubtedly be higher, this preliminary finding contradicts what many scientists thought just a few months ago.

26.   Few scientists think the Earth ever rotated fast enough for the moon to spin off.

27.   For a long time, scientists thought that red, green and brown plants acquired different types of chloroplasts at different times.

28.   For years, scientists thought the process of immune destruction was relentless but gradual.

29.   For mammals that form leks, however, scientists thought that factors other than mate choice attracted females to the party.

30.   From their analysis of pictures, scientists think rampaging flood waters carved out the Ares Vallis channel in a matter of weeks.