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EcosystemsCultivating Weeds
Some formerly mild-mannered plants turn into horticultural bullies when planted far outside their native range.
By Janet Raloff -
Inside Violent Worlds
Political conflict and terror look different up close and local.
By Bruce Bower -
Virus boosts fat in chickens and mice
Injecting mice and chickens with a type of adenovirus that causes colds in humans led to higher body fat, though not higher body weight, and researchers point to indirect evidence for a role for the virus in human obesity as well.
By Ruth Bennett -
EarthLack of spring snowpack bodes ill for many
NASA satellite images released last week confirmed that the northern United States had much less snow cover than normal this spring, following North America's warmest winter on record.