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The Flight of Dragons (book) : ウィキペディア英語版 | The Flight of Dragons (book)
The Flight of Dragons is a 1979 speculative book written by Peter Dickinson and illustrated by Wayne Anderson. ==Thesis== According to Dickinson's hypothesis, the chief obstacle to admitting the (past) existence of dragons is the difficulty of powered flight by so large an organism. To resolve this, he introduces a dirigible-like structure in which hydrochloric acid would dissolve large amounts of rapidly-growing bone, releasing massive amounts of hydrogen that, once aloft, would support the body above the ground. The dragon's wings are traced to "modifications of the ribcage" (an anatomical evolutionary path not attested in any clade),〔Standard textbooks on biological evolution discuss the different paths along which vertebrates developed anatomical adaptations to powered flight. 〕 and the expulsion of fire from the throat, as a means of removal of excess gas. The absence of fossil evidence is traced again to the internal acids, which (in Dickinson's view) would dissolve the body soon after death.
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