Competition for ecological niches limits evolution of new species: Trevor Price

August 15, 2014

Professor Trevor Price, Department of Ecology and Evolution, University of Chicago, says that South America was an island for a long time. ​According to Professor Price, this geographic isolation prevented oscines from colonizing South America until recently: following a circuitous route, songbirds spread through Asia and into North America before finally arriving in South America just 15 million years ago.

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