Nature highlights

Key research and analysis from this week's Nature magazine.

• Bacteroides fragilis: How gut flora hide
  
• Global fisheries: Stock taking
• High-energy astrophysics: A hole lot bigger
• Transgenic crops: Tell-tale markers in traditional maize
• SA synthesis: For the defence
• Laser science: Short and swift
• Atomic structure: Neutron holography
• Right whales: Last rites?
• Ion channels: Bartter's syndrome

29 November 2001 table of contents