It has long been suspected that humans and the urban areas we create are having an important — and surprisingly current and ongoing — effect on evolution, which may have significant implications for the sustainability of global ecosystems.
A new multi-institution study led by the University of Washington that examines 1,600 global instances of phenotypic change — alterations to species’ observable traits such as size, development or behavior — shows more clearly than ever that urbanization is affecting the genetic makeup of species that are crucial to ecosystem health and success.
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