These 125,000-year-old stone tools were found in the United Arab Emirates.

Taking a Southern Route Out of Africa

In an episode of "The Simpsons," Professor Frink, left, demonstrates his latest creation: a sarcasm detector.

The Science of Sarcasm? Yeah, Right

How do humans separate sarcasm from sincerity? Research on the subject is leading to insights about how the mind works. Really

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Montana’s “Dueling Dinosaurs”

Did a recently discovered pair of dinosaurs die at each other’s throats?

Many of us long to leave the cubicle farm, even for a day or two each week

Examining Telecommuting the Scientific Way

A trial at a company in China finds telecommuting workers are more productive than their counterparts in the office

A reconstruction of Utahraptor at the Museum of Ancient Life. The Utahraptor #GRAWR joke has been the most popular of the lot so far.

GRAWR! Dinosaurs As They Never Were

Frustrated by disappointing dinosaur facts, one blogger decides to create some of his own

A reconstruction of a Neanderthal, which was named after Germany’s Neander Valley

A Hominid Dictionary

Hominids have complicated names, but their scientific monikers are less mysterious when their Latin, Greek and African roots are decoded

The best place to find "aliens" might be Comic-Con (2008, credit

No Evidence Yet of ET, White House Says

If there’s an alien conspiracy, the President doesn’t know about it

The skull Gilmore described as "Gorgosaurus lancensis"

The Origin of a Little Tyrant

Is “Nanotyrannus” a small-bodied tyrannosaur, a juvenile of some unknown species, or a young Tyrannosaurus rex?

Ecologists warn that New England's maples could be at risk

Ecology Explains How the World Works

This is not a glamorous science; no one will ever accuse an ecologist of being in it for the money

Hominid fossils dating to 1.8 million years ago have been found in Dmanisi, Georgia. Researchers are using computers to find more fossils in the region.

Computers Are Good Fossil Hunters

New technology is allowing researchers to narrow their searches for places where ancient hominids were likely to have lived, traveled and left fossils

The tyrannosaur Gorgosaurus in a classic death pose (although note that the tail is almost entirely missing and speculatively reconstructed).

SVP Dispatch: Dinosaur Round-Up

At the close of the annual paleontology meeting, dinosaur science seems more vibrant than ever

Do you freeze your jeans?

The Myth of the Frozen Jeans

Cold temperatures aren’t enough to kill off any bacteria on your clothing

The skull of Utahceratops, one of the unusual dinosaurs from southern Utah

SVP Dispatch: Life on the Lost Continent

At the annual SVP meeting, paleontologists review just how western North America got so many weird dinosaurs

A false-color image of flooding in Bangkok, Thailand

Thailand’s Flooding, As Seen From Space

Bangkok residents have to avoid the crocodiles let loose by the flood

Luke, the National Zoo's male lion

Secrets of a Lion’s Roar

Not all cats roar, but those that do fascinate us with their mysterious and frightening sounds

A Protoceratops nest containing up to 15 baby dinosaurs

At Last, a True Protoceratops Nest

Plus, fossil evidence for a Cretaceous turducken: inside the guts of a feathered Microraptor dinosaur were the partial remains of a prehistoric bird

The molar tooth of a Denisovan

Modern Humans Once Mated with Other Species

Genetic studies reveal that some modern humans carry DNA from extinct hominid species, evidence of ancient interbreeding

A Daspletosaurus skull at the Museum of the Rockies, where Jack Horner is the curator of paleontology.

SVP Dispatch: Dinosaurs and the Proofs of Evolution

In last night’s lecture, paleontologist Jack Horner gave five proofs of evolution based on what we know about dinosaurs

The Global Change Research Wetland at the Smithsonian Environmental Research Center

Why Smithsonian’s Environmental Staff Like Science

Science is our attempt to figure out the inner workings of a very messy world

A kinkajou in Costa Rica

What In The World Is A Kinkajou?

It’s a carnivore, though it mostly eats fruit. It has a prehensile tail, but it’s not a primate

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