The Origin of Species by Means of Natural Selection; Or, the Preservation of Favored Races in the Struggle for Life ... |
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125 ÆäÀÌÁö
From the first growth of the tree, many a limb and branch has decayed and
dropped off; and these fallen branches of various sizes may represent those
whole orders, families and genera which have now no living representatives, and
which ...
From the first growth of the tree, many a limb and branch has decayed and
dropped off; and these fallen branches of various sizes may represent those
whole orders, families and genera which have now no living representatives, and
which ...
367 ÆäÀÌÁö
Mr. Clift many years ago showed that the fossil mammals from the Australian
caves were closely allied to the living marsupials of that continent. In South
America, a similar relationship is manifest, even to an uneducated eye, in the
gigantic ...
Mr. Clift many years ago showed that the fossil mammals from the Australian
caves were closely allied to the living marsupials of that continent. In South
America, a similar relationship is manifest, even to an uneducated eye, in the
gigantic ...
404 ÆäÀÌÁö
The living waters have flowed during one period from the north and during
another from the south, and in both cases have reached the equator; but the
stream of life has flowed with greater force from the north than in the opposite
direction, ...
The living waters have flowed during one period from the north and during
another from the south, and in both cases have reached the equator; but the
stream of life has flowed with greater force from the north than in the opposite
direction, ...
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according action adapted admit advantage allied America amount animals appear become believe belonging birds breeds called cause certain characters climate closely color common considered continued crossed descended developed difficulty distinct domestic doubt effects existing extinct extremely facts favorable fertility flowers follow formation forms genera genus give given groups habits hand Hence hybrids important increase individuals inhabitants inherited insects instance instincts intermediate islands kind known land laws less living look male manner means modified namely natural selection naturalists nearly observed occur organs origin parent perfect period plants points present principle probably produced range ranked reason remarked resemblance respect seeds seems seen separated shown side similar single slight sometimes species stage sterility structure successive suppose tend theory tion variability variations varieties various vary whole widely young