- Robot toddler gets an upgrade
- Battle over climate science spreads to US schoolrooms
- The blessing and curse of choice
- Innovation: Sending botnets the way of smallpox
- Half-cock chicken mystery solved
- Mom and dad, stop stifling me - it's damaging my brain
- Parched island
- Farming future
- Japan protest over tuna ban plan
- Video: Extreme physics
- Extreme physics at the ends of the Earth
- In pictures: Bear power