How To Use Glacial epoch In A Sentence

• These cosmical factors provided a mechanism for multiple glacial epochs and alternating cold and warm periods in each hemisphere. James Croll and the astronomical theory of climate change
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• And to this continuity of the circumpolar land, and to the consequent freedom for intermigration under a more favourable climate, I attribute the necessary amount of uniformity in the sub-arctic and northern temperate productions of the Old and New Worlds, at a period anterior to the Glacial epoch. 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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• Suppose, for example, a return of the glacial epoch and a spread of polar climatal conditions over the whole globe. Essays
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• And this continuity of the circumpolar land, with the consequent freedom under a more favourable climate for intermigration, will account for the supposed uniformity of the sub-arctic and temperate productions of the Old and New Worlds, at a period anterior to the Glacial epoch. XII. Geographical Distribution. Dispersal During the Glacial Period
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