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Science 3 November 1995:
Vol. 270. no. 5237, pp. 735 - 736
DOI: 10.1126/science.270.5237.735
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Research News

Joshua Fischman

The debate over the origins of endothermy--and whether or not dinosaurs were warm-blooded--has blown hot and cold for years, hampered by the lack of clear-cut evidence. But bones in the nose that are essential for conserving water and heat in endotherms seem completely lacking in dinosaurs, and many researchers say this indicates the extinct animals couldn't have been warm-blooded.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)