... the species. If a dry season be gradually prolonged, the large mammal will suffer from the drought sooner than the small one ; if such alteration of climate affect the quantity of vegetable food, the bulky Herbivore will first feel the effects of... Maryland and Virginia Medical Journal - 129 페이지1859전체보기 - 도서 정보
| 1859 - 552 페이지
...prolonged, the large mammal will suffer from the drought scorer than the small one: if such alteratnn of climate affect the quantity of vegetable food,...the effects of stinted nourishment; if new enemies are introduced, the large and conspicuous quadruped or bird will fall a prey, while the smaller species... | |
| 1859 - 532 페이지
...gradually prolonged, the large mammal will suffer from the drought aoorcr than the small one : if snch alteration of climate affect the quantity of vegetable...first feel the effects of stinted nourishment; if new eneuiiea are introduced, the large and conspicuous quadruped or bird will fall a prey, while the smaller... | |
| 1859 - 478 페이지
...drought sooner than the small one ; if such alteration of elimate affect the quantity of vegctable food, the bulky herbivore will first feel the effects of stinted nourishment ; if new enemies are introduced, the large and conspicuous quadruped or bird will fall a prey, while the smaller species... | |
| 1860 - 448 페이지
...existence in a degree proportionate to the size which may characterize the species. If a dry season lie gradually prolonged, the large mammal will suffer...introduced, the large and conspicuous animal will fall я prey, while the smaller kinds «onceal themselves and escupe. Small quadrupeds, moreover, are more... | |
| Richard Owen - 1861 - 490 페이지
...adapted to exist in, will militate against that existence in a degree proportionate to the bulk of the species. If a dry season be gradually prolonged,...kinds conceal themselves and escape. Small quadrupeds are more prolific than large ones. Those of the bulk of the Mastodons, Megatheres, Glyptodons, and... | |
| sir John Frederick W. Herschel (1st bart.) - 1862 - 470 페이지
...prolonged, the large mammal will suffer from the drought sooner than the small one; if such alterations of climate affect the quantity of vegetable food,...stinted nourishment. If new enemies be introduced, the larger^and conspicuous quadruped" (and we may state the more helpless birds, if provided with none... | |
| Richard Owen - 1866 - 704 페이지
...militate against that existence in a degree proportionate, perhaps in a geometrical ratio, to the bulk of the species. If a dry season be gradually prolonged,...the effects of stinted nourishment ; if new enemies are introduced, the large and conspicuous quadruped or bird will fall a prey, whilst the smaller species... | |
| Richard Owen - 1866 - 700 페이지
...militate against that existence in a degree proportionate, perhaps in a geometrical ratio, to the bulk of the species. If a dry season be gradually prolonged,...the effects of stinted nourishment ; if new enemies are introduced, the large and conspicuous quadruped or bird will fall a prey, whilst the smaller species... | |
| Richard Owen - 1868 - 1046 페이지
...generative powers, introduction of enemies, &c., by such characters of species as those of size : — ' If a dry season be gradually prolonged, the large...the effects of stinted nourishment ; if new enemies are introduced, the large and conspicuous quadruped or bird will fall a prey, whilst the smaller species... | |
| Richard Owen - 1868 - 966 페이지
...generative powers, introduction of enemies, &c., by such characters of species as those of size : — ' If a dry season be gradually prolonged, the large...the effects of stinted nourishment ; if new enemies are introduced, the large and conspicuous quadruped or bird will fall a prey, whilst the smaller species... | |
| |