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What is a species? Ornithologists consider ways to define it.

Source
Christian Science Monitor

Publication Date
2017-03-10

With organisms gradually evolving into new organisms over the history of life on Earth, drawing a distinction between species can be challenging. One biologist proposes a new way of looking at the question.

Content
http://www.csmonitor.com/Science/2017/0309/What-is-a-species-Ornithologists-consider-ways-to-define-it