Dawn redwood trees once were believed extinct. The towering trees have been quietly growing in Michigan for decades.

The Little Ice Age was a period of global cooling that began during around 1300 CE and lasted until about 1850. Average ...

Discovered over a century ago, the late Upper Paleolithic archeological site included stone and bone tools, evidence of ...

Global warming is producing a rapid loss of plant species -- according to estimates, roughly 600 plant species have died out since 1750 -- twice the number of animal species lost. But which species ...

A time capsule to the dinosaur age ... dawn redwoods — Metasequoia glyptostroboides — have a compelling history. Living as long as 2,000 years, the species of tree has existed since dinosaurs ...

Lucas Atwell CC BY-SA 3.0 Everyone knows about the mass extinction that ended the Age of Dinosaurs. About 66 million years ago, a seven-mile-wide asteroid slammed into our planet and began a mass ...

New images from the North Sea show never-before-seen landforms that were carved by a single, colossal ice sheet 1 million years ago and subsequently buried beneath a thick layer of mud ...