Dinosaur Slime Sparks Debate Over Soft-Tissue Finds

Publication: National Geographic News   Date: July 30, 2008   View Article

Soft tissue recently found in 68-million-year-old Tyrannosaurus rex bones is actually modern-era bacterial slime, scientists say, challenging what some call one of the most remarkable paleontology findings of the 21st century.

The world’s 7 deadliest dinosaurs

Publication: MSNBC.com   Date: March 10, 2008   View Article

Learn about the seven deadliest dinosaurs in the world, from the meat-eating Tyrannosaurus rex to the plant ripper Gryposaurus monumentensi.

Big Dinosaurs Had “Teen Sex”

Publication: National Geographic News   Date: January 14, 2008   View Article

Big dinosaurs, like humans, reached sexual maturity during the messy growth spurts of adolescence, according to a new study.

The reproductive strategy of dinosaurs was unlike that of their reptilian ancestors or their bird descendants, the study concludes.

“Strangest Dinosaurs Ever” Yield Clues to Dino Growth

Publication: National Geographic News   Date: October 5, 2007   View Article

An extraordinarily bizarre-looking species of dinosaur has been discovered in China’s Gobi desert that could unlock clues as to how an unusual family of vegetarian dinos evolved, scientists say.

The newfound species belonged to a group of large dinosaurs called therizinosaurs, relatives of meat-eating theropods like Tyrannosaurus rex.

T. Rex Quicker Than Fastest Humans, Study Says

Publication: National Geographic News   Date: August 23, 2007   View Article

Today’s top athletes would be no contest for meat-eating dinosaurs that ran on two feet, according to new computer simulations of how the extinct predators moved.

Even a six-ton Tyrannosaurus rex, long considered a lumbering beast, could reach a top speed of 18 miles an hour (29 kilometers an hour), according to the simulations.

T. Rex Found in Montana – Dig Goes Interactive

Publication: National Geographic News   Date: May 14, 2004   View Article

Dinosaur hunters often regale the world with news of their exotic discoveries after the fact—bones of ancient giants pulled from a hillside in Madagascar, chipped from the ice in Antarctica, dug from the pampas of Patagonia.

Now the world is invited along as a team of paleontologists excavate a Tyrannosaurus rex from the siltstone at a ranch in eastern Montana. All they need to do is log on to Unearthing T. rex.

Do They Really Look Like That? The Science of Dino Art

Publication: National Geographic News   Date: March 11, 2003   View Article

Every few years a dinosaur leaps from the signature yellow border of National Geographic Magazine and captures the fascination of readers. This month a skull of Tyrannosaurus rex shatters a bone of its prey—another dinosaur.

Cool, but is it realistic? Is that picture with T. rex’s teeth glistening with the blood of the dinosaur it just devoured a scientifically accurate interpretation of dinnertime 75 million years ago?

© 2008-2010 Collected Writings By John Roach