People in a committed relationship, surprisingly, are the ones sending racy images
As the national park system turns 100, rangers warn of pressures that have pushed state parks to add hotels, golf courses and ski resorts
New evidence emerges a century after Britain’s “missing link” debacle
Myth of land-changing deluge supported by geology, as are flood legends from Scandinavia to Tibet
It’s hard to predict the possible downsides, but we must try to do it anyway in order to develop them responsibly
Gun violence at the Pulse night club and elsewhere across the U.S. in recent years demand controls over the widespread availability of firearms
A criminologist takes on common misconceptions that often enter debates about gun violence
Nuclear physicists wonder: Should we downsize our nuclear arsenal?
Fast-breeding cephalopods exploit gaps left by extreme climate change and overfishing
A criminologist who studies the issues weighs in on the latest risks
Clusters of software and hardware are being aimed at ISIS and other outlaw groups
Evidence confirms dramatic climate change effects in the Solomon Islands
How did the innovative blood-testing company fall so far, so fast?
Fossil suggests that T. rex got smart before it got big
The mathematical odyssey, plus a guide to calculating pi for yourself
Officials criticized them as bogus "magicians," but making data transparent caused residents to demand action
Videos from Africa capture repeated activities unconnected to food or status
From churches to schools, the places where people cast their ballots can subliminally 'prime' the choices they make
To thrive, species must be quick breeders, unfussy eaters.