21.   To explain this behavior, Rae has proposed a theory on how counteracting torques keep a well-thrown ball from drifting off its flight path to a receiver.

22.   Vojtecky said he was at a loss to explain the behavior of the youths.

23.   We have become remarkably adept at finding external reasons to explain errant behavior and abdicate accountability.

24.   While the president is keeping his distance from the story, even Condit allies criticized his attempt to explain his behavior in the Levy scandal.

25.   Akpaman explains his behavior as an outward display of his ability to endure pain and discomfort, and hence remain loyal to his ancestors and village cousins.

26.   Coach Mike Dunleavy, who long ago gave up trying to control his volatile All-Star, was at a loss to explain his behavior.

27.   How might the researchers explain this behavior?

28.   It sparked a burst of research that led to the discovery of a multitude of other subatomic particles, whose odd behavior was eventually explained by quark theory.

29.   Mukora was identified by The New York Times as among those asked by the IOC inquiry to explain their behavior.

30.   The particles also could help explain the behavior of meteorites, comets and other features of the solar system that probably generated the bombardment.