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 28
... doubt that man , in a sufficiently civilized state to have manufactured weapons , existed at a period extremely remote as measured by years ; and we know that at the present day there is hardly a tribe so barbarous as not to have ...
... doubt that man , in a sufficiently civilized state to have manufactured weapons , existed at a period extremely remote as measured by years ; and we know that at the present day there is hardly a tribe so barbarous as not to have ...
Page 40
... doubt that the continued selection of slight variations , either in the leaves , the flowers , or the fruit , will produce races differing from each other chiefly in these characters . noticeable Varat , a It may be objected that the ...
... doubt that the continued selection of slight variations , either in the leaves , the flowers , or the fruit , will produce races differing from each other chiefly in these characters . noticeable Varat , a It may be objected that the ...
Page 44
... doubt , in most cases , utterly in- correct . The man who first selected a pigeon with a slightly larger tail , never dreamed what the descendants of that pigeon would become through long - continued , partly unconscious and partly ...
... doubt , in most cases , utterly in- correct . The man who first selected a pigeon with a slightly larger tail , never dreamed what the descendants of that pigeon would become through long - continued , partly unconscious and partly ...
Page 46
... doubt the strawberry had always varied since it was cultivated , but the slight varieties had been neg- lected . As soon , however , as gardeners picked out individual plants , with slightly larger , earlier , or better fruit , and ...
... doubt the strawberry had always varied since it was cultivated , but the slight varieties had been neg- lected . As soon , however , as gardeners picked out individual plants , with slightly larger , earlier , or better fruit , and ...
Page 47
... doubt that some domestic animals vary less than others , yet the rarity or absence of distinct breeds of the cat , the donkey , peacock , goose , & c . , may be attributed in main part to selection not having been brought into play in ...
... doubt that some domestic animals vary less than others , yet the rarity or absence of distinct breeds of the cat , the donkey , peacock , goose , & c . , may be attributed in main part to selection not having been brought into play in ...
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Common terms and phrases
accumulated adapted affinities allied species America analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic existing exterminated extinct extremely facts favourable fertilised fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ laws less living males mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organic organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory variability variations varieties vary whole widely