1.   Answers to these and other questions are offered in these informative science briefs, which were compiled by the editors of Discover magazine.

2.   Answers to these and other questions are offered in this roundup of science briefs, which were compiled by the editors of Discover magazine.

3.   Answers to these and other questions are offered in this round-up of science briefs.

4.   A round-up of science briefs compiled by the editors of Discover magazine.

5.   These facts and more are included in this roundup of science briefs, which was compiled by the editors of Discover magazine.