Nature highlights

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

• Cancer checkpoint
• Back to the desert
• Moon lighting
• Complex disease made simpler
• Low-metal stars: second site
• Eccentric behaviour
• Polymers see the light
• Modelling the Earth's mantle
• Evolving tetrapods: steppe change
• Axons 'taste' their route
• Oncogenic protein
• Cancer therapy: stop PARP

14 April 2005 table of contents