2015-08-19, 15:40
The Tree of Life may be a bush
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 have found that evolution is more complex than this model would have it, and that the tree is actually more akin to a bush.
http://feeds.sciencedaily.com/~r/science...153509.htm
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 have found that evolution is more complex than this model would have it, and that the tree is actually more akin to a bush.
http://feeds.sciencedaily.com/~r/science...153509.htm