On the Origin of Species by Means of Natural Selection, Or The Preservation of Favoured Races in the Struggle for LifeIt took Charles Darwin more than twenty years to publish this book, in part because he realized that it would ignite a firestorm of controversy. The Origin of Species first appeared in 1859, and it remains a continuing source of conflict to this day. Even among those who reject its ideas, however, the work's impact is undeniable. In science, philosophy, and theology, this is a book that changed the world. In addition to its status as the focus of a dramatic turning point in scientific thought, On the Origin of Species stands as a remarkably readable study. Carefully reasoned and well-documented in its arguments, the work offers coherent views of natural selection, adaptation, the struggle for existence, survival of the fittest, and other concepts that form the foundation of modern evolutionary theory.--Amazon.com. |
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Page vii
... Means of transition - Cases of difficulty- Natura non facit saltum - Organs of small importance - Organs not in all cases absolutely perfect - The law of Unity of Type and of the Conditions of Existence embraced by the theory of Natural ...
... Means of transition - Cases of difficulty- Natura non facit saltum - Organs of small importance - Organs not in all cases absolutely perfect - The law of Unity of Type and of the Conditions of Existence embraced by the theory of Natural ...
Page viii
... Means of dispersal , by changes of climate and of the level of the land , and by occasional means · Dispersal during the Glacial period co - extensive with the world .. - 346-382 CHAPTER XII . GEOGRAPHICAL DISTRIBUTION - continued ...
... Means of dispersal , by changes of climate and of the level of the land , and by occasional means · Dispersal during the Glacial period co - extensive with the world .. - 346-382 CHAPTER XII . GEOGRAPHICAL DISTRIBUTION - continued ...
Page 4
... means of modification and co- adaptation . At the commencement of my observations it seemed to me probable that a careful study of domes- ticated animals and of cultivated plants would offer the best chance of making out this obscure ...
... means of modification and co- adaptation . At the commencement of my observations it seemed to me probable that a careful study of domes- ticated animals and of cultivated plants would offer the best chance of making out this obscure ...
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Common terms and phrases
adapted affinities allied species America analogous variations ancient animals appear become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distant distinct species divergence domestic doubt embryo existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period greater number groups of species habits Hence hermaphrodites horse hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ legs less living males mammals manner Marsupials migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organisation perfect pigeons pistil plants pollen probably produced progenitor quagga racters ranked reciprocal crosses remarked resemble rock-pigeon rudimentary organs secondary sexual seeds sexual selection Silurian slight sometimes South America sterility striped structure struggle successive supposed tendency theory tion variability varieties vary whole widely