Map: Where the trees are

The darkest greens reveal the areas with the densest, tallest, and most robust forest growth across the U.S.

Rare tornado hits North Carolina

A rare tornado struck parts of western North Carolina on January 11, 2012. Damage and injuries were reported, but no one was killed.

Lost world of creatures at Antarctic deep-sea vents

Using Remotely Operated Vehicles to explore deep-sea hydrothermal vents near Antarctica, a British team has found creatures new to science.

Powerful 7.3 magnitude quake strikes off coast of Indonesia

On January 10, 2012, a powerful 7.3 magnitude earthquake struck off the coast of northern Sumatra, Indonesia, prompting officials to issue a brief tsunami warning.

Too much snow, or the lack thereof

Today only 14.7% of the U.S. is covered in snow, compared to over 60% on this date last year. But though it's scarce across the lower 48, snow has pounded Alaska.

How guppy females avoid sexual harassment

Researchers have found that Trinidadian guppies actively avoid being harassed by lusty males by hanging out with more attractive females.

What makes a rooster decide to crow?

The answer from scientists is that it has something to do with an alarm clock.

Genetically engineered silkworms with spider genes spin super silk

Super strong silk from genetically engineered silkworms might be useful for sutures, artificial limbs and parachutes.

Deep in Earth’s interior, minerals behave unexpectedly

Scientists have discovered that iron oxide conducts electricity more readily under the extreme pressures and temperatures found in Earth’s deep interior.

Satellite shows ghost shoreline of Lake Buchanan in Texas

By the morning of December 28, 2011, Lake Buchanan stood roughly 23 feet (7 meters) below its historic average for the month.