Two hundred years after Charles Darwin's birth, scientists around the world are exploring the varied ways existing species adapt and new species arise.
Long legs and skittish behavior are recently evolved traits that allow fence lizards in the southeastern U.S. to co-exist with lethal and invasive fire ants, providing hope for species facing abrupt climatic changes.
Archaeologists at a remote lake in Chiapas search for clues to what life was like for the unconquered Maya 500 years ago and how it has, or hasn't, changed for their descendants.
Within the last decade, the Chubut province in Argentina has become a paradise for paleontologists seeking fossilized clues about the flora and fauna from millions of years hence.
Some 93 million years ago, dinosaur-era "sea monsters" swam the seas above what is now Utah. Thanks to paleontologists, more evidence of the ancient beasts is now surfacing.
The aftermath of an earthquake, a friendly cow, and an ethereal Paris sunset are three of the six winners of the National Geographic International Photo Contest 2008.
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