One of the defining features of the Anthropocene is that the world is changing in ways that compel species to move, and another is that it’s changing in ways that create barriers — roads, clear-cuts, cities — that prevent them from doing so.

Elizabeth Kolbert (b. 1961) American journalist and author

The Sixth Extinction: An Unnatural History, ch. 9 “Islands on Dry Land” (2014)
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