Contents

24 January 2003
Vol 299, Issue 5606

About The Cover

Cover image expansion

COVER A wood beetle, Platynus decentis, with tracheal tubes visible at the junction of the head and thorax. This specimen was used in the x-ray imaging study of insect respiration reported on page 558, which revealed a mechanism of rapid respiration in insects analogous to the inflation and deflation of vertebrate lungs. [Photo: M. W. Westneat]