National Geographic

"Living Dinosaur" Is Fastest-Evolving Animal

<table cellspacing="0" cellpadding="1"> <tr> <td valign="top"> <a href="http://news.nationalgeographic.com/news/2008/03/080331-tuatara-evolution.html"> <img src="http://news.nationalgeographic.com/news/images/thumbs/080331-tuatara-evolution_60x40.jpg" height="40" width="60" alt="image" /> </a> </td> <td valign="top"> <p>The tuatara may look the same as it did millions of years ago, but its DNA is rapidly changing, experts say.</p> </td> </tr></table>