 ... of any gradual diminution of the size of such species, but is the result of circumstances which may be illustrated by the fable of the ' Oak and the Reed ; ' the smaller and feebler animals have bent and accommodated themselves to changes which have...  The American Journal of Science and Arts - Side 4321858Fuld visning - Om denne bog
 | 1851 - 450 sider
...will fall a prey, whilst the smaller species might conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones....therefore, of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | 1851 - 438 sider
...will fall a prey, whilst the smaller species might conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones....therefore, of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | 1851 - 1248 sider
...will fall a prey, whilst the smaller species might conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones....therefore of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | Sir George Cornewall Lewis - 1852 - 500 sider
...will fall a prey, whilst the smaller species might conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones....therefore, of small species of animals, in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | Royal Society (Great Britain) - 1854 - 438 sider
...will fall a prey, whilst the smaller species might conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones....therefore of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | Royal Society (Great Britain) - 1854 - 450 sider
...will fall a prey, whilst the smaller species might conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones....therefore of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | 1859 - 532 sider
...vegetable food, the bulky herbivore will first feel the effects of stinted nourishment; if new eneuiiea are introduced, the large and conspicuous quadruped...consequence of any gradual diminution of the size of such epecies, but is the result of circumstances which may be illustrated by the fable of the ' Oak and... | |
 | British Association for the Advancement of Science - 1859 - 750 sider
...if new enemies are introduced, the large and conspicuous quadruped or bird will fall a prey, whilst the smaller species conceal themselves and escape....larger species of the same natural families formerly exisied, is not the consequence of any gradual diminution of the size of such species, but is the result... | |
 | 1859 - 448 sider
...bird will fall a prey, while the smaller species conceal themselves and escajic. Smaller animals ore usually also more prolific than larger ones. " The...is not the consequence of any gradual diminution of tho size of such species, but is the result of circumstances which may be illustrated by the fable... | |
 | Richard Owen - 1859 - 120 sider
...large ones. Those of the bulk of the mastodons, megatheria, glyptodons, and diprotodons, are uniparous. The actual presence, therefore, of small species of...families formerly existed, is not the consequence of degeneration — of any gradual diminution of the size — of such species, but is the result of circumstances... | |
| |
