Science

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Six Secrets of Polonium

This rare and dangerous element, discovered by Marie Curie, is found in cigarettes and was used to poison an ex-KGB agent

The juvenile tyrannosaur puppet at the Natural History Museum of Los Angeles County

What It’s Like Inside a Dinosaur

The 5.8-magnitude earthquake that struck Washington, D.C. on August 23 caused damage to the Washington Monument.

Scaling the Washington Monument

Mountaineering park ranger Brandon Latham talks about how engineers investigated the monument from hundreds of feet above the ground

Resembling a protective amulet, the Tibetan bunting charms Tashi Zangpo and the other monks he has trained.

A Buddhist Monk Saves One of the World's Rarest Birds

High in the Himalayas, the Tibetan bunting is getting help from a very special friend

Given a safe passage, jaguars will wander hundreds of miles to breed, even swimming across the Panama Canal.

The Jaguar Freeway

A bold plan for wildlife corridors that connect populations from Mexico to Argentina could mean the big cat's salvation

Prize pumpkins have tripled in size in the past three decades. Tim Parks, of the Ohio Valley growers club, harvests his 2010 contender.

The Great Pumpkin

Competitive vegetable growers are closing in on an elusive goal—the one ton squash

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Wild Things: Wildcats, Pigeons and More...

Sea monster mamas, bat signals and opossum versus viper

King of the Hill by photographer James Kasher

Photo of the Week: Anemone and Shrimp

One appeared on the very top of one of the highest fingers and grasped the tip in what appeared to be a moment of victory: King of the Hill

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Dinosaur Sighting: A Special Archaeopteryx 150th Anniversary Edition

A visit to Munich meant a pilgrimage to the paleontology museum

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Catching Up With Planet Dinosaur

Feathered dinosaurs do have feathers, and the cannibalism storyline is solid, but it's a shame to see venomous Sinornithosaurus and the "dino gangs" trap

Physicist Lisa Randall believes an extra dimension may exist close to our familiar reality, hidden except for a bizarre sapping of the strength of gravity as we see it.

Opening Strange Portals in Physics

Physicist Lisa Randall explores the mind-stretching realms that new experiments soon may expose

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The Terrible Dinosaurs of the 1970s

How many students are still meeting outdated dinosaurs, rather than the dinosaurs we now know?

A long exposure of a Motyxia millipede highlights its greenish-blue glow

The Millipede That Glows In The Dark

The blind, nocturnal arthropod produces a deadly toxin when disturbed

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Is There a Future For Terra Nova?

The show borrows heavily from other sci-fi sources and the first episode was heavy on exposition. But what about the dinosaurs?

We no longer think of the stars as points of light on the tapestry of the night but now know that they're burning balls of gas billions of miles away in the black expanse of space.

Readers Respond: Why I Like Science

Science is the partner of art and the quest for truth

Rock hyraxes in Serengeti National Park, Tanzania

What in the World is a Rock Hyrax?

It's the elephant's closest living, land-based relative

Anchiceratops ornatus, on display at the Royal Tyrrell Museum in Canada

The One and Only Anchiceratops

Paleontologists typically have only a handful of specimens, represented by incomplete materials, from a range of sites spanning millions of years

Most orchid bees, like this Euglossa paisa, have metallic coloration.

The Evolution of the Orchid and the Orchid Bee

Which came first--the plant or its pollinator?

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Dino-Shooter Promises Primal Carnage

For the first time in 65 million years, non-avian dinosaurs roam the planet—and the best we can do is turn 'em into chunky cat food

Toxoplasma gondii requires the cat digestive system for reproduction, so it hitches a ride in a rat

The Parasite That Makes a Rat Love a Cat

Toxoplasma gondii alters activity in a rat's brain

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