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• Defining normal in the brain
  Scans set standard for how connectivity evolves during maturation
  
  
• Mars shows signs of recent activity
  Carbon dioxide measurements suggest liquid water and volcanoes in past 100 million years
  
  
• A cellular secret to long life
  Longevity may depend in part on neatly spooling DNA
  
  
• Mutated gene cited in some ovarian cancers
  Finding may help in screening women with endometriosis for cancer risk
  
  
• The hunchback of central Spain
  New dinosaur species has a hump plus possible featherlike structures on its arms
  
  
• Mars organics get new lease on life
  Viking mission may have destroyed compounds that make biology possible while trying to detect them
  
  
• What lies beneath
  Studies link deforestation to geology and agricultural demand
  
  
• Not in this toad’s backyard
  Native Indonesian amphibian takes on invading ants
  
  
• Study clarifies obesity-infertility link
  Effect of insulin in pituitary surprises scientists
  
  
• FOR KIDS: Gulf oil finds many paths
  Questions, and lots of oil, remain months after Gulf disaster
  
  
• FOR KIDS: Poop-sniffing mice to the rescue
  Animals can detect droppings left by ducks with Bird Flu
  
  
• Light-harvesting complexes do it themselves
  New technique could yield self-assembling solar cells
  
  
• Changing one of nature's constants
  If correct, new finding could upend physicists’ view of universe
  
  
• Microbe's survival manual
  Researchers uncover how D. radiodurans can withstand extreme radiation
  
  
• DVDs don’t turn toddlers into vocabulary Einsteins
  But some parents mistakenly think kids do learn words from watching these popular programs