During the Last Glacial Maximum, tropical regions with lush vegetation would have looked completely different. The last Ice Age reached its peak about 20,000–21,000 years ago, and massive ice sheets ...

Many pregnant women around the world are low in vitamin D. This is a very common issue that has prompted inquiries over the ...

Ever wonder who you mimic in a line of people heading for an exit? In an emergency, do you trail the person right ahead, or ...

Researchers used to think that HIV and its relatives were pretty recent things, maybe only a few hundred years old. But a ...

The Neanderthal toolkits found in two Ice Age caves near Le Moustier, in southwestern France, tell a surprising story. Even though the types of rock were very different—large, high-quality flint ...

Think of a small fossil as the equivalent of a homemade video of prehistoric life. Fossils formed when sea organisms began their great proliferation more than half a billion years ago rarely contained ...

An ancient hearth at El Salt (Spain) is giving up its secrets—not with flames, but with physics. Scientists have already established that Neanderthals used to make fires at this site (spanning from 80 ...

Think of a tsunami that used to crash over a city once in a lifetime, but now comes crashing every year. Who is guilty? Coastal flooding results when a high tide coincides with a storm surge, waves, ...

Mosquitoes have posed a threat to human beings since time immemorial. They not only disturb sleep by their incessant buzzing but have also been carriers of deadly diseases. In combating the ...

Imagine what would happen if the source of your electricity was not the sun, wind, or water flow, but rather the moisture present in the air? The ability of moisture to provide energy has been ...

From ancient graves to stories of survival on the frontier, signs of human flesh-eating turn stomachs, even as they raise questions. Anthropologists have uncovered bones cut up with axes and ...

Cities from Paris to Prague have sweltered under record-breaking heat waves in recent years. In fact, Western Europe's average summer temperature has climbed by roughly 2.3°C since 1980, about triple ...