Photo: Dinosaur Slime Sparks Debate Over Soft-Tissue Finds



In 2005 scientists announced they had found soft tissue preserved in the 68-million-year-old bone of a T. Rex (above, an artist's rendering).

In July 2008 another research team reported that the "tissue" is actually slime coating the insides of the blood vessels.

Scientists in the latest study used an electron microscope, among other tools, to show where biofilms were peeling away (inset) from the bone's blood vessel walls.

Illustration by Doug Henderson/NGS; Photograph courtesy Thomas Kaye


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

National Geographic Traveler has scoured the globe for the world's most beautiful, interesting, and off-beat road trips. Dive in to get drive directions, quizzes, photos, and more.