Photo: Dinosaurs Went Underground to Wait Out Extreme Weather



About the size of a big iguana, a polar dinosaur snuggles into a riverbank den in an artist's conception.

A July 2009 study reports the discovery of the world's oldest known dinosaur burrow in what is now Australia. The discovery suggests that some dinosaurs survived extreme weather by going underground, researchers say.



Illustration by James Hays, Fernbank Museum


NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS

ADVERTISEMENT

NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY

50 Drives of a Lifetime

Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.