CBE—Life Sciences EducationVol. 7, No. 2 FeaturesFree AccessHow Animals WorkDennis LiuDennis LiuHoward Hughes Medical Institute, Chevy Chase, MD 20815Search for more papers by this authorPublished Online:13 Oct 2017https://doi.org/10.1187/cbe.08-03-0011AboutSectionsView articleView Full TextView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail View articleFiguresReferencesRelatedDetailsCited by Vol. 7, No. 2 June 01, 2008163-262 Metrics Downloads & Citations Downloads: 130 History Information© 2008 by The American Society for Cell BiologyACKNOWLEDGMENTSI thank A. Malcolm Campbell for helpful comments and suggestions on this manuscript.PDF download