61.   But until now, scientists have had little hard scientific data to guide them in how and where to best set up such reserves.

62.   But the scientists have plenty of time to tinker with improvements.

63.   Celera does not plan to make all its sequence data immediately available, although Venter has said scientists will have free access to parts of it.

64.   Computer scientists have a lot to learn from the way that mother nature has constructed cells, says Knight.

65.   Despite their scrutiny, scientists have a hard time recalling any domestic illness outbreaks traced to legally made raw-milk cheese.

66.   Dr. Randall Prather, an animal scientist at the University of Missouri in Columbia, said he and other scientists had different interests.

67.   Either they are wrong or scientists may have to assume that the whopper could be a dim failed star known as a brown dwarf.

68.   Exotics fit so well into the ecosystems they inhabit that even scientists have a hard time telling some native species apart from the exotic ones.

69.   First, though, scientists will have to solve the even bigger mystery of why particles have mass at all.

70.   For example, scientists might have to reconsider the concept that the Big Bang, the theorized moment of cosmic origin, was completely symmetric.