Scientists long assumed that as trees got older, they grew slower—just like us. But a new study underscores the climate benefits of the oldest, biggest trees
Driving Over Your Best Friend: It’s the Right Thing to Do
Life is full of moral dilemmas, and a new study shows we may be better at resolving them than we think
China Clones Pigs and Sequences “Cute Animals” on an Industrial Scale
A company in southern China is playing God big time
Space Photos: 45-Year-Old Footprints, and More
Photos from orbit capture work sites on the Moon and Mars
Officials Don’t Really Know How Dangerous the Chemical Spilled in West Virginia Is
Authorities have virtually no way of regulating many industrial chemicals. The latest spill could change that.
Lions Are Almost Extinct In West Africa
Only 400 left
To Drill Or Not to Drill—Debate Over Offshore Testing and Drilling in the Atlantic
The pros and cons of seismic exploration in the Atlantic
The Most Important Brain in the History of Neuroscience
In his forthcoming book The Tale of the Dueling Neurosurgeons, Sam Kean details the surprising history of the human brain. A look at how one royal mind opened the door for all of science to come
Poachers, Not Big Game Hunters, Are the Real Threat to Endangered Rhinos [UPDATED]
Many conservationists were outraged when the Dallas Safari Club auctioned off the right to kill a critically endangered black rhino. But a legal hunt might just help the species—and won’t hurt the bigger fight against poaching
U.S. Carbon Emissions Climb for the First Time in Three Years
As coal regains footing, U.S. carbon emissions are likely back on the rise