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Tropics Expand and Stem Cells Repair Major Skull Damage

  • It's official: the Earth is getting more tropical. Global warming has expanded the tropical band around the center of the planet over the past two decades, and it looks like it will expand more over the next century. [Reuters]
  • Researchers repaired major skull damage in mice using human embryonic stem cells. They grew…
  • » 12/03/07 11:00am 12/03/07 11:00am