National Geographic

Flu viruses are always unpredictable. H7N9 could go big—or not.

The findings suggest that women's choices may have driven the evolution of larger penises.

Transatlantic flights could get bumpier in the near future, according to a new study.

The editors of a new encyclopedia have unearthed more than 40,000 Nazi camps and ghettos.

With drug laws changing, there's a push to retrain and evaluate detection dogs. So how does a dog learn not to detect marijuana?

There's a lot we don't know about the secretive and combative country. Here are some of the things we do know. (Saturday)

Pensioners in Ukraine stay in touch with tradition at a weekly dance held in a subway station underpass.

The Hubble Space Telescope has spied a supernova that is a record-breaking ten billion light-years from Earth, a new study says.

American math teachers don't use hand gestures as often as teachers in other countries do, and student performance may suffer.

The real Tyrannosaurus rex may have been even more terrifying than the one in the movie.

An Arkansas pipeline spill is focusing new attention on a question that may be decisive in the Keystone XL debate: Is oil from Canada's tar sands more damaging than conventional crude?

A new national poll finds that many Americans still believe conspiracy theories that can be easily debunked by science.

An unexploded World War II bomb discovered in Berlin is part of what experts say is a collection of 2,000 to 4,000 tons of explosive material in the city.

Shark-tooth weapons once used for warfare in the Central Pacific have revealed two locally extinct shark species, a new study says.

Nearly 700 endangered pig-nosed turtles were confiscated at an airport in Jakarta, Indonesia on March 15, according to Indonesian authorities.

As Cyprus struggles for economic footing, a look back at a former cash cow.

Thousands of people—including Justin Bieber—have a pet monkey. But primates are not cut out to live with humans.

The pipeline rupture forces an evacuation of homes in Arkansas and highlights questions about safety in the push to move tar sands oil from Canada south to U.S. refineries.

The tropical reptiles can cling to surfaces that don't get easily wet, like waxy leaves, a new study says.

As debate rages in New York State over whether to allow fracking, researchers are attempting to shed light on its public health effects.