Science, January 9, 2009

Cover
Charles Darwin, a few years after his Beagle voyage. Science's celebration of his 200th birthday and the 150th anniversary of the publication of On the Origin of Species begins with a Review and an Essay on the origins of life, the start of a monthly series exploring evolution.
On the Origin of Life on Earth
In the first of a
monthly series of essays celebrating the Year of Darwin, Carl Zimmer
discusses attempts to unravel how life originated on Earth by
recreating the process in the laboratory.
Seeking Africa's First Iron Men
Archaeologists are battling over when -- and how -- ancient African cultures entered the Iron Age.
A New View on -- and Hope for -- an Old Disease
Researchers
are debating whether growths called tubers cause the mental problems in
many people with tuberous sclerosis. Regardless, an organ-transplant
drug may offer a treatment for the rare disease.


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