survey

Mice are nocturnal and are "polyphasic sleepers" -- napping for a few minutes before arousing briefly to survey their environment and then resuming their slumber.

The experiment is now in its fourth of five years surveying the sky and plans to collect roughly 40 million galaxies and quasars by the time the project ends.

The survey found that 29% of 467 school superintendents interviewed reported that teachers and other staff quit their profession or left their districts “due to culturally divisive conflict.”

The devastation was concentrated on a handful of streets surveyed by state and county officials.

The survey was conducted online between March and July, a period that covered the height of campus protests in April, May and June.