There have been various hypotheses, sometimes contradictory, that try to explain why and how the run occurs.

A second hit and run occurred shortly after 7 a.m. yesterday in Brooklyn, according to the police.

This not being the case, then a few runs may occur in the dark.

The following are suspicious signs a dry run may be occurring:

Such a run occurred at Delta last year, when more than 1,100 pilots took early retirement in just a few months.

Such a run cannot occur in 64b/66b because transitions are guaranteed at 66 bit intervals.

And those nine runs occurred in nine consecutive times at bat.

The last run of the Gulf Wind occurred on April 30, 1971.

There is also doubt as to when exactly the first run of the cable car occurred.

The run occurs in mid-October and can bring millions of fish to a concentrated area near the river mouth.