Landmarks to go dark for extinction awareness

Global landmarks from the Sydney Opera House to Dubai's Burj Khalifa are set to dim their lights on Saturday to raise awareness about energy use and our planet's vanishing biodiversity.

Iguana-sized dinosaur cousin discovered in Antarctica

250 million years ago, it was covered in forests and rivers, and the temperature rarely dipped below freezing. It was also home to diverse wildlife, including early relatives of the dinosaurs. Scientists have just discovered ...

Nature under assault: key indicators

The World Wildlife Fund and partners have tracked population changes in Earth's animal species for decades. News from the latest "Living Planet" report, released Tuesday, is more grim than ever.

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