 | 1902 - 642 páginas
...conceal themselves and escape. Smaller animals are usually, also, more prolific than larger ones. ' The actual presence, therefore, of small species of...families formerly existed is not the consequence of any gradual diminution of the size of such species, but is the result of circumstances which may be... | |
 | 1851 - 450 páginas
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence, 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 páginas
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence, 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 páginas
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence 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 páginas
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence, 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 páginas
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence 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 páginas
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence 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... | |
 | Richard Owen - 1859 - 120 páginas
...large ones. Those of the bulk of the mastodons, megatheria, glyptodons, and diprotodons, are uniparous. The actual presence, therefore, of small species of...circumstances which may be illustrated by the fable «f the 'Oak and the Reed;' the smaller and feebler animals have bent and accommodated themselves to... | |
 | 1859 - 554 páginas
...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... | |
 | 1859 - 532 páginas
...conceal themselves and escape. Smaller animals are usually also more prolific than larger ones. '• The actual presence, therefore, of small species of...families formerly existed, is not the consequence of any gradual diminution of the size of such epecies, but is the result of circumstances which may be... | |
| |
... 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... 
