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A Theory Set in Stone: An Asteroid Killed the Dinosaurs, After All

Although any T. Rex –enthralled kid will tell you that a gigantic asteroid wiped the dinosaurs off the planet, scientists have always regarded this impact theory as a hypothesis subject to revision based on further evidence gathered from around the globe.
Observations
Dinosaurlike creature spread in Triassic times
News
Down the Hatch(ling): Nest-Raiding Snake Gulped Newborn Titanosaurs
A rare set of fossils suggests that snakes preyed on the largest animals to have ever walked the Earth when they were at their most vulnerable
In-Depth Reports
Stimulating Science: Following the Recovery Money
One year ago, Congress passed and President Barack Obama signed the American Recovery and Reinvestment Act into law, which handed out billions of dollars for science, health, energy and other research. How is that money being spent?
Observations
Prehistoric patterns: A dinosaur gets color from head to feathery tail

Latest Stories
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New large-clawed Jurassic dinosaur sheds light on elusive lineage

Colorizing Dinosaurs: Feather Pigments Reveal Appearance of Extinct Animals

Breathtaking: Alligators breathe like birds, underscoring an ancient link--and possibly a survival strategy

Paleontologist Peter Ward's "Medea hypothesis": Life is out to get you

How Asteroids Built the Continents

Readers Respond on the "Origin of Computing"

Bird-like dinosaur used venom to subdue prey

Italy science council funds creationist book

Newly Discovered T. Rex Relative Fleshes Out Early Dino Evolution

Tiny tyrannosaurs rewrite evolutionary rules

Jurassic Start: Fossil Pushes Tyrannosaurs' Origin Back 10 Million Years

A Theory Set in Stone: An Asteroid Killed the Dinosaurs, After All

Dinosaurlike creature spread in Triassic times

Down the Hatch(ling): Nest-Raiding Snake Gulped Newborn Titanosaurs

Stimulating Science: Following the Recovery Money

Colorizing Dinosaurs: Feather Pigments Reveal Appearance of Extinct Animals

New feathered dinosaur specimen strengthens dino-bird link

What ever happened to the theory of periodic mass extinctions, which stated that major extinctions occur every 26 million years? Is it widely accepted? And when was the last such extinction--have there really been two of them since the dinosaurs died off 65 million years ago?

Was the Dinosaurs' Long Reign on Earth a Fluke?

Paleontologist Peter Ward's "Medea hypothesis": Life is out to get you

Lone Offender Killed the Dinosaurs

Prehistoric patterns: A dinosaur gets color from head to feathery tail

Scientific American Magazine

March 2010 Issue

Breaking the Climate Debate Logjam

Climate Change: A Controlled Experiment

Readers Respond on "A Path to Sustainable Energy by 2030"

End-of-Days Danger

Invasion of the Drones: Unmanned Aircraft Take Off in Polar Exploration

Full Table of Contents | All Issues



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A Theory Set in Stone: An Asteroid Killed the Dinosaurs, After All

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