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Science  30 Apr 1999:
Vol. 284, Issue 5415, pp. 707
DOI: 10.1126/science.284.5415.707e


Scientists have thought that long-necked dinosaurs called sauropods nibbled at leaves high in the trees, but a Report on p. 798 based on computer models of fossils finds that these creatures probably browsed close to the ground. Follow the links to more dino-modeling images on Science Online and outside sites. Or, if cell biology is your thing, check out three movies accompanying the Report on p. 765 that help explain how cells use chemical signals to sense direction.