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The Origin of Species by Means of Natural Selection: Or, the Preservation of ...
No preview available - 2016
On the Origin of Species by Means of Natural Selection; Or, the Preservation ...
Professor Charles Darwin
No preview available - 2015
adapted affinities allied species America analogous ancient appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common continued crossed crustaceans degree difficulty distinct species divergence doubt Edition eggs embryo Europe existing exterminated extinct extremely facts favourable Fcap females fertilised fertility flowers formation forms fossil genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvae less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation parent perfect pigeons pistil plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary seeds sexual selection Silurian slight South America stamens sterility structure struggle successive supposed tion variability variations varieties vary Vols whole widely Woodcuts