
Girl scouts Madison Vorva and Rhiannon Tomtishen update The Early Show on their campaign to get palm oil out of girl scout cookies.

The Arabian oryx, which inspired early unicorn myths, made a remarkable recovery from extinction.

During the 70 years there were no wolves in Yellowstone, elk feasted on aspen and other trees. Now, the trees are thriving again.

For some species of ocean dwellers, there just aren't that many fish in the sea.