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 334
animals kept by the natives ) inhabiting an island situated above 300 miles from a continent or great continental island ; and many islands situated at a much less distance are equally barren . The Falkland Islands , which are in ...
animals kept by the natives ) inhabiting an island situated above 300 miles from a continent or great continental island ; and many islands situated at a much less distance are equally barren . The Falkland Islands , which are in ...
Page 335
... islands from continents , there is also a relation , to a certain extent independent of distance , between the depth of the sea separating an island from the neighbour- ing mainland , and the presence in both of the same mammi- ferous ...
... islands from continents , there is also a relation , to a certain extent independent of distance , between the depth of the sea separating an island from the neighbour- ing mainland , and the presence in both of the same mammi- ferous ...
Page 340
... island , and that of another plant to another island . Hence when in former times an immigrant settled on any one or more of the islands , or when it subsequently spread from one island to another , it would undoubtedly be exposed to ...
... island , and that of another plant to another island . Hence when in former times an immigrant settled on any one or more of the islands , or when it subsequently spread from one island to another , it would undoubtedly be exposed to ...
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Common terms and phrases
accumulated adapted affinities allied species amount analogous ancient animals 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 domestic doubt eggs embryo endemic Europe existing exterminated extinct extremely facts favourable fertility flower formations 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 occasionally oceanic islands offspring perfect pigeons pistil plants pollen present probably produced progenitor ranked reciprocal crosses remarked resemblance seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder theory tion trees variability variations vary whole widely