How new bird species arise - Science Daily

Much of a centuries-old debate over where and how new bird species form has now been resolved. Researchers have provided evidence that birds in mountainous areas -- where the vast majority of the planet's species live -- have left lowland habitats for higher …

Much of a centuries-old debate over where and how new bird species form has now been resolved. Researchers at the University of Copenhagen have provided evidence that birds in mountainous areas -- wh… [+7559 chars]

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