 ... while the form and structure of his body will remain unchanged. So when a glacial epoch comes on, some animals must acquire warmer fur, or a covering of fat, or else die of cold. Those best clothed by nature are, therefore, preserved by natural selection....  The Natural History Review - 331 페이지1864전체보기 - 도서 정보
 | 1864 - 668 페이지
...prey. The capacities which enable him to do this are what he requires to be strengthened, and these will, therefore, be gradually modified by " natural...circumstances, will make himself warmer clothing, and build better houses ; and the necessity of doing this will react upon his mental organisation and social... | |
 | 1868 - 978 페이지
...prey. The capacities which enable him to do this are what he requires to be strengthened, and these will, therefore, be gradually modified by • natural...circumstances, will make himself warmer clothing, and build better houses; and the necessity for doing this will react upon his mental organisation and social... | |
 | Alfred Russel Wallace - 1870 - 458 페이지
...prey. The capacities which enable him to do this are what he requires to be strengthened, and these will, therefore, be gradually modified by "natural...circumstances, will make himself warmer clothing, and build better houses ; and the necessity of doing this will react upon his mental organization and social... | |
 | Alfred Russel Wallace - 1871 - 412 페이지
...prey. The capacities which enable him to do this are what he requires to be strengthened, and these will, therefore, be gradually modified by " natural...circumstances, will make himself warmer clothing, and build better houses; and the necessity of doing this will react upon his mental organization and social condition—will... | |
 | Alfred Russel Wallace - 1871 - 64 페이지
...prey. The capacities which enable him to do this are what he requires to- be strengthened, and these will, therefore, be gradually modified by "natural...glacial epoch comes on, some animals must acquire a warmer fur, or a covering of fat, or else die of cold. Those best clothed by nature are, therefore,... | |
 | William Rathbone Greg - 1872 - 348 페이지
...prey. The capacities which enable him to do this are what he requires to be strengthened, and these will, therefore, be gradually modified by "natural...circumstances, will make himself warmer clothing, and build better houses ; and the necessity of doing this will react upon his mental organisation and social... | |
 | William Rathbone Greg - 1873 - 352 페이지
...prey. The capacities which enable him to do this are what he requires to be strengthened, and these will, therefore, be gradually modified by 'natural...circumstances, will make himself warmer clothing and build better houses ; and the necessity of doing this will react upon his mental organization and social... | |
 | Wm. R. Greg - 1873 - 354 페이지
...prey. The capacities which enable him to do this are what he requires to be strengthened, and these will, therefore, be gradually modified by " natural...body will remain unchanged. So when a glacial epoch cornea on, some animals must acquire warmer fur, or a covering of fat, or else die of cold. Those best... | |
 | Sir Arthur Mitchell - 1881 - 380 페이지
...prey. The capacities which enable him to do this are what he requires to be strengthened, and these will, therefore, be gradually modified by ' natural...circumstances, will make himself warmer clothing, and build better houses; and the necessity of doing this will react upon his mental organization and social condition... | |
 | Sir Arthur Mitchell - 1881 - 386 페이지
...prey. The capacities which enable him to do this arc what he requires to be strengthened, and these will, therefore, be gradually modified by 'natural...Man, under the same circumstances, will make himself wanner clothing, and build better houses; and the necessity of doing this will react upon his mental... | |
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