On the Origin of Species by Means of Natural Selection: Or the Preservation of Favoured Races in the Struggle for Life |
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Page 279
... living forms . - Let us now look to the mutual affinities of extinct and living species . They all fall into one grand natural system ; and this fact is at once explained on the principle of descent . The more ancient any form is , the ...
... living forms . - Let us now look to the mutual affinities of extinct and living species . They all fall into one grand natural system ; and this fact is at once explained on the principle of descent . The more ancient any form is , the ...
Page 288
... living land - shells of Madeira ; and between the extinct and living brackish- water shells of the Aralo - Caspian Sea . Now what does this remarkable law of the succes- sion of the same types within the same areas mean ? He would be a ...
... living land - shells of Madeira ; and between the extinct and living brackish- water shells of the Aralo - Caspian Sea . Now what does this remarkable law of the succes- sion of the same types within the same areas mean ? He would be a ...
Page 324
... living waters left their living drift on our mountain - summits , in a line gently rising from the arctic lowlands to a great height under the equator . The various beings thus left stranded may be compared with savage races of man ...
... living waters left their living drift on our mountain - summits , in a line gently rising from the arctic lowlands to a great height under the equator . The various beings thus left stranded may be compared with savage races of man ...
Contents
INTRODUCTION | 1 |
STRUGGLE FOR EXISTENCE | 52 |
NATURAL SELECTION | 69 |
Copyright | |
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Common terms and phrases
accumulated adapted affinities allied species amount analogous ancient appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distant distinct species divergence doubt embryo Europe existing exterminated extinct extremely facts favourable fertility flowers formation forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important increase in number individuals inhabitants inherited insects instance instincts intercrossing land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest occasional oceanic islands offspring Origin of Species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemblance seeds sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory tion trees variability variation vary whole widely