A northern cardinal

The City Bird and the Country Bird

As in Aesop’s fable, there are advantages and disadvantages for birds living in the city

A replica of a Peking Man, or Homo erectus, skull on display in China.

The Mystery of the Missing Hominid Fossils

Seventy years ago, an important collection of “Peking Man” fossils disappeared in China. They are still missing today

A tyrannosaur bursts from the pages of Arthur Conan Doyle's 'The Lost World'

Dinosaur Sighting: Hardcover Tyrannosaurus

The “Library Phantom” strikes again, and transforms a copy of The Lost World into a prehistoric scene

A woolly mammoth sinks into the tar at the La Brea Tar Pits in Los Angeles.

Annalee Newitz of io9: Why I Like Science

Best of all, science is a story with an open ending. Every discovery ends with more questions

The Tyrannosaurus in Fantasia was given a nearly-accurate, tail-off-the-ground pose like this mount of Gorgosaurus at the American Museum of Natural History.

Disney’s Age of Dinosaurs

As ugly as they were, some of Fantasia’s dinosaurs were ahead of their time

In this image from Science on Ice, graduate student Maria Tausendfreund collects a water sample from an Arctic melt pond during a brief period of 'ice liberty.'

A Holiday Gift List for Science Lovers

Some books, toys, art and clothing for the scientist or geek in your life

The skeleton of Oreopithecus bambolii

Human Evolution’s Cookie Monster, Oreopithecus

For the past 60 years, scientists have argued over the enigmatic, human-like fossils of the nine-million-year-old Italian ape

Bones from the foot of a hadrosaur attributed to Edmontosaurus annectens

A Detailed Guide to a Hadrosaur’s Foot

This is not super-sexy research, but some of the biggest gaps in our understanding about dinosaurs involve relatively simple things

Hawkmoths prefer columbines with long, slender spurs.

The Columbines and Their Pollinators: An Evolutionary Tale

New research provides insight into an evolutionary concept introduced by Charles Darwin

On May 29, 2006, mud and steaming hot water squirted up in a rice field in Sidoarjo, East Java, marking the birth of the world's most destructive mud volcano.

The World’s Muddiest Disaster

Earth’s most violent mud volcano is wreaking havoc in Indonesia. Was drilling to blame? And when will it end?

Bottlenose dolphins are good swimmers

For Dolphins, Pregnancy Comes With a Price

A bigger body means increased drag, slower speeds and greater vulnerability to predators

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The Latest Destination for Human Spaceflight

The latest proposed destination for human space missions illustrates the essential hollowness of the current direction of our civil space program

Big Southern elephant seal bulls (Mirounga leonina) fighting for females on beach during breeding season in spring.

Wild Things: Piranhas, Nazca Boobies, Glowing Millipedes

Elephant Seals, Neanderthal evolution and more news from the world of science

Whalers pursued sperm whales for the rich oil in their oversized heads. Now biologists are on the tail of these deep-diving, long-lived, sociable and mysterious sea creatures.

The Sperm Whale’s Deadly Call

Scientists have discovered that the massive mammal uses elaborate buzzes, clicks and squeaks that spell doom for the animal’s prey

Novacem plans to test its experimental cement (above: sample blocks) first in structures like doghouses and patios.

Building a Better World With Green Cement

With an eye on climate change, a British startup creates a new form of the ancient building material

A 19th-century print of New Madrid earthquake chaos.

The Great Midwest Earthquake of 1811

Two hundred years ago, a series of powerful temblors devastated what is now Missouri. Could it happen again?

Sea otters have teeth that resemble those of Paranthropus

Strange Animal Models of Human Evolution

What do sea otters, wolves and capuchin monkeys reveal about our hominid ancestors?

A reconstructed skeleton of Rapetosaurus on display at the Field Museum of Natural History in Chicago.

Inside Sauropod Armor

A hollow, thin-walled bone is not exactly the sort of structure that is going to protect a sauropod from attack—so what was its purpose?

Water crystallizes into ice at 32 degrees Fahrenheit most of the time, but not always.

Ask Smithsonian

At What Temperature Does Water Freeze?

The answer is far more complicated than it first appears—water doesn’t always turn to ice at 32 degrees Fahrenheit

A pigeon's turn is very different from that of an airplane

How A Pigeon Is Like A Helicopter

The bird changes direction with its whole body

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