News of the WeekPaleontology

Tyrannosaurus rex Soft Tissue Raises Tantalizing Prospects

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Science  25 Mar 2005:
Vol. 307, Issue 5717, pp. 1852
DOI: 10.1126/science.307.5717.1852b

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On page 1952, a team describes dinosaur blood vessels--still flexible and elastic after 68 million years--and apparently intact cells.