The loss of wolves in the American West set off a cascade of changes to the region's food web.

What Happens When Predators Disappear

It’s Predator Week here at the blog. What’s your favorite predator, either existing or extinct?

A dinosaur egg with preserved wasp cocoons inside

Making a Home in a Dinosaur Egg

There were five spherical eggs in the 70-something-million-year-old clutch. One egg was cracked in half and filled with cocoons

Great White Egret, by Antonio Soto, photographed March 2009, South Florida

How the Great White Egret Spurred Bird Conservation

I was certain that the bird’s plumage had to have been faked, but all the photographer did was darken the background. Those feathers were real

A paper "Brontosaurus" skeleton in a bottle, created by Akinobu

Brontosaurus in a Bottle

Dinosaurs are famous for the gargantuan sizes some attained, and that’s why these minuscule skeleton sculptures are so charming

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There’s a Drought—Is It Climate Change?

Despite the heat waves across the country, no one is screaming “climate change is real” because of them. Why?

The estimated sizes of several Allosaurus specimens, including "Epanterias."

A Truly Exceptional Allosaurus

Cope did not know it at the time, but he had described an especially large representative of a species his rival had named just a year before

Dinosaur, Colorado's Triceratops

Dinosaur Sighting: Roadside Triceratops

The main drag of Dinosaur, Colorado is festooned with a number of goofy-looking dinosaurs

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The Cambrian Explosion in Song

What does a music teacher do when he ends up teaching science?

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Wyoming Paleontology Dispatch #1: Why 56 Million Years Ago?

What did the earth look like during the Paleocene Epoch? A Smithsonian researcher investigates

After an hour or two of searching, Scott Wing and his team found a spot to set up camp.

Wyoming Dispatch #2: The Scene at Field Camp

Before digging, the paleobiologists must go through the arduous process of setting up camp

A pig-nosed turtle at the Shedd Aquarium

The Decline of the Pig-Nosed Turtle

Saving the turtle from extinction could be complicated, scientists find

The skull of Stegoceras

Dome-Headed Dinos Well-Suited to Butting Heads

The researchers compared the skulls of Stegoceras and Prenocephale with head-butting mammals including elk, duiker and musk ox

The formidable hand claw of Dryptosaurus

Dryptosaurus’ Surprising Hands

This enigmatic tyrannosauroid may have had the novel combination of short arms with big hands

Naked mole rats from the Smithsonian Institution's National Zoo

14 Fun Facts About Naked Mole Rats

Number 11: A mole rat’s incisors can be moved independently and can even work together like a pair of chopsticks

Keith Hampton, a sociologist at the University of Pennsylvania, is starting to poke holes in the theory that technology has weakened our relationships.

How Technology Makes Us Better Social Beings

Sociologist Keith Hampton believes technology and social networking affect our lives in some very positive ways

Kentrosaurus readies itself for an attack by an Allosaurus

Kentrosaurus Had a Formidable Swing

The space shuttle Atlantis, ready for liftoff.

Quirkiest Space Shuttle Science

As the space shuttle program ends, a salute to some of its most surprising studies

Rhinos and pigs wallow and coat themselves in mud, which protects them from the sun and helps to keep moisture in their skin.

Ask an Expert: Do Animals Get Sunburned?

Staffers at the National Zoo clue us in to how animals like elephants and hippos protect themselves from harmful UV rays

Eyjafjallajökull

What’s the Most Dangerous Country?

Iceland is pretty much the least habitable of all the places that people have inhabited. But visiting it is like hiking through a geology textbook

Ask Your Questions about Fossilized Colors

Just a quick note that Science magazine’s website is running a live chat this afternoon at 3:00 about new techniques to reveal color in fossils

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