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Schmidt-Nielsen, K REFERENCES to “The Secret Dinobird Story” Archibald, J.D. et al. (2010) Cretaceous Extinctions: Multiple Causes. Science 328, 973-976. Autumn, K., M. J. Ryan, and D. B. Wake. (2002). Integrating historical and mechanistic biology enhances the study of adaptation. Quarterly Rev. Biol. 77, 383-408. Baier D.B, Gatesy S.M. & Jenkins F.A. Jr (2007) A critical ligamentous mechanism in the evolution of avian flight. Nature 457, 307-310. Bakker, R.T. (1986) The Dinosaur Heresies: New Theories Unlocking the Mystery of the Dinosaurs and Their Extinction. William Morrow, New York. Ballista (2006) http://en.wikipedia.org/wiki/Image:Bambiraptor_2.JPG (Exhibit in Oxford University Museum.) Benson, R., Butler, R., Carrano, M., O’Connor, P. (2011) Air-filled postcranial bones in theropod dinosaurs: physiological implications and the‘reptile’–bird transition. Biol. Rev. doi: 10.1111/j.1469- 185X.2011.00190.x Benton, M.J. 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Clarke, J.A., Zhou, Z.-H. & Zhang, F.-C. (2006) Insight into the evolution of avian flight from a new clade of Early Cretaceous ornithurines from China and the morphology of Yixianornis grabaui. Journal of Anatomy, 20(3), 287-308. Cleland, C.E. (2001) Historical science, experimental science, and the scientific method. Geology 29(11), 987-990. Cleland, C.E. (2002) Methodological and Epistemic Differences between Historical Science and Experimental Science. Philosophy of Science, 69, 474–496. Cleland, C.E. (2011) Prediction and Explanation in Historical Natural Science. Brit. J. Phil. Sci. 62, 551–582. Codd, J.R., Boggs, D.F., Perry, S.F. & Carrier, D.R. (2005) Activity of three muscles associated with the uncinate processes of the giant Canada goose Branta canadensis maximus. The Journal of Experimental Biology. 208, 849-857. Codd, J. R., Manning, P. L., A. Norell, M. A., Perry, S. F. (2008) Avian-like breathing mechanics in maniraptoran dinosaurs. Proc. R. Soc. 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