August 20, 2009

THIS, ON THE OTHER HAND, MUST SURELY BE INTENTIONALLY COMIC:

Major Insights Into Evolution of Life Reported (Stuart Wolpert, 8/20/09, US News)

Humans might not be walking the face of the Earth were it not for the ancient fusing of two prokaryotes—tiny life forms that do not have a cellular nucleus. UCLA molecular biologist James A. Lake reports important new insights about prokaryotes and the evolution of life in the Aug. 20 advance online edition of the journal Nature.

Endosymbiosis refers to a cell living within another cell. If the cells live together long enough, they will exchange genes; they merge but often keep their own cell membranes and sometimes their own genomes.

Lake has discovered the first exclusively prokaryote endosymbiosis. All other known endosymbioses have involved a eukaryote—a cell that contains a nucleus. [...]

"Along came these organisms—the double-membrane prokaryotes—that could use sunlight," Lake said.


Yes, we've actuallky reached such a point of Darwinian desperation that a theory that resorts to an "along came" moment is considered a great advance.

Posted by Orrin Judd at August 20, 2009 5:21 PM
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