81.   Hubby contributed to the understanding scientists now have of the relationship between evolution and genetic variation.

82.   If it is considered a planet, astronomers said, then there is much about planetary formation that scientists have yet to learn.

83.   If such fossils are then sold into private collections, scientists will have a harder time getting access to rare specimens.

84.   In addition, scientists now have the ability to match the genetic fingerprints of the bacteria found in patients who contract an illness so they can identify the source.

85.   In one fell swoop, a European scientist has more than doubled the number of these fossils in existence.

86.   In others, scientists have no idea why a key protein undergoes the fatal change.

87.   In part, he is surprised because the Roslin scientists have impeccable credentials, and the validity or honesty of their research has never been in doubt.

88.   In his talk, however, he stressed that scientists still have far to go in understanding the abnormalities of some cloned offspring and the generally low efficiency rate.

89.   In the quest to send people to Mars, scientists still have much to learn about our closest planetary neighbor.

90.   In these cases, scientists may have to decide with which family tree the hybrid should be identified.