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Health & MedicineMeasles cases up in U.S. and Canada
Both countries report 2011 to be the worst year since the mid-1990s.
By Nathan Seppa -
LifeCycads not ‘living fossils’
Though ancient, today’s representatives of the plant group date back to a common ancestor that lived not all that long ago.
By Nick Bascom -
LifeLive long, pass it on
A tendency for a lengthy life can be inherited for several generations, even when offspring no longer have the genes for it.
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PsychologyLearning to walk on err
Flub-inducing treadmill tasks aid motor learning, with rehab implications.