Pennisi, Elizabeth Society for Integrative and Comparative Biology meeting. Lean times, lean gut. [electronic resource] - Science (New York, N.Y.) Jan 2003 - 505 p. digital Publication Type: News ISSN: 1095-9203 Standard No.: 10.1126/science.299.5606.505 doi Subjects--Topical Terms: Alligators and Crocodiles--anatomy & histologyAnimalsBiological EvolutionEatingFastingIntestinal Mucosa--ultrastructureIntestine, Small--diagnostic imagingMicrovilli--ultrastructureSeasonsUltrasonography