Earth Matters

11 startling stats about Earth's disappearing wildlife

The world's 10 oldest living trees

The animals in this video aren't around any more

Fish at aquarium enjoy a gravel shower

This blue-leafed plant isn't afraid of the dark

Ruling on bearded seals could have big consequences for endangered species

Elk sighting in S.C. is the first in 275 years

A 'hidden' forest in the shape of a Celtic cross has emerged in Ireland

Only 1 specimen of this 414-legged creature has ever been found

Universe may not be expanding at an accelerating rate after all

What makes a champion tree?

8 of the coldest places in the world to live