 I can, indeed, hardly doubt that all vertebrate animals having true lungs have descended by ordinary generation from an ancient prototype, of which we know nothing, furnished with a floating apparatus or swimbladder.  Punch - 209 페이지1862전체보기 - 도서 정보
 | Stephen Jay Gould - 1994 - 484 페이지
...selection has actually converted a swim bladder into a lung, or organ used exclusively for respiration. I can, indeed, hardly doubt that all vertebrate animals...prototype, of which we know nothing, furnished with a floating apparatus or swim bladder. Many readers will be puzzled at this point, as I have perplexed... | |
 | Charles Darwin - 2003 - 676 페이지
...selection has actually converted a swimbladder into a lung, or organ used exclusively for respiration. I can, indeed, hardly doubt that all vertebrate animals...prototype, of which we know nothing, furnished with a floating apparatus or swimbladder. We can thus, as I infer from Professor Owen's interesting description... | |
 | Peter Dear - 2008 - 256 페이지
...quite extraordinary, and appeared so to his contemporaries. The Origin contains such passages as this: "I can, indeed, hardly doubt that all vertebrate animals...prototype, of which we know nothing, furnished with a floating apparatus or swimbladder."12 This statement appears after some discussion of the comparative... | |
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