Earth News, Earth Science, Energy Technology, Environment News

August 19, 2015

The Tree of Life may be a bush
Uppsala, Sweden (SPX) Aug 19, 2015
New species evolve whenever a lineage splits off into several. Because of this, the kinship between species is often described in terms of a 'tree of life', where every branch constitutes a species. Now, researchers at Uppsala University have found that evolution is more complex than this model would have it, and that the tree is actually more akin to a bush. Less than a year ago, a consortium of some hundred researchers reported that the relationship between all major bird clades had been mapped ... read more

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