Earth Matters

What are those weird squishy creatures that washed up on a California beach?

Caribou herd in Alaska suffering from mysterious decline

Radioactive diamonds are turned into batteries that last for thousands of years

Saltmarsh sparrow could go extinct within 50 years

5 reasons to pay attention to those dismal coral bleaching headlines

This mother cat relaxes in a crate of chicks

Was Einstein wrong? His views about the speed of light may soon be challenged

Here are the dates you can get into any U.S. national park for free in 2017

What's cuter than a polar bear getting a bath?

Coconut crab pincers pack a serious punch

Africa's tallest tree discovered towering on continent's highest mountain

Werner Herzog goes 'Into the Inferno'