Earth Matters

The 7 natural wonders of the world

Cash prizes flow for watershed protection

Rhinos: Flight for survival

Sheep go nude at French festival

Scientists study sea turtles to understand long existence

Deal may save the Everglades -- and a sugar firm

Cancer strikes sea lions

9 not-so-crazy ideas to combat climate change

Media Mayhem: A trade war in the wind

MNN week in review: Why invading Asian carp and the Wheego Whip Life matter

China set to gain from ice-free, warming Arctic

Infographic: Top 20 countries with most endangered species