This year's tree in midtown Manhattan, like last year's, will go toward building Habitat for Humanity housing
A new study shows that tapping trees for frankincense--often used in religious ceremonies--could be destroying them. by Alison Snyder
We run the numbers to see whether keeping kosher has any effect on your carbon footprint
Kids can now use cell phones, Twitter and photo-sharing sites to monitor Santa's progress on Christmas Eve
Are we running out of oil?
An Atlantic blacktip shark spontaneously reproduced without the company of a mate, scientists report in the second documented case of the phenomenon.<
When deciding on real or fake trees for the holiday season, think through the green pros and cons. David Biello reports
Recent research concludes that parents significantly overestimate how sugar affects their children's hyperactive behavior. Susannah F. Locke reports.
Research suggests that women don't seem to mind if they receive the less-than-perfect gift. Men, on the other hand, are a different story. Susannah F. Locke reports
What's the best way to get home for the holidays?
The ice is melting across the Arctic—and Antarctica is starting to thaw, too. David Biello reports
Where to find gifts that are safe for children--and the environment
An ingredient in frankincense eases anxiety and elevates mood
The virgin births of several male Komodo dragons at two English zoos might provide one explanation why Jesus was not a clone of Mary
ScientificAmerican.com presents some of this year's most exciting high-tech toys as well as gadgets to make the planet greener and inventions designed to deliver the most basic needs to developing countries