May 16: Birds defy gravity! (And not just by flying)

Man created superbugs, man can destroy superbugs.

May 15: Black holes: soon to be victims of Creationist wiretapping?

Sloths actually sleep less than college students do on weekends.

Did Humans Colonize the World by Boat?

Research suggests our ancestors traveled the oceans 70,000 years ago. 05.20.2008

Uncovering an Ancient America

An excavation team has uncovered what may be the continent's oldest settlement. 05.19.2008

The Next Steps Toward a Sustainable Planet

Environmental activist Laurie David gives a state of the union on the environment. 05.16.2008

AIDS "Dissident" Seeks Redemption... and a Cure for Cancer

Biologist Peter Duesberg was all but banished from science for his views on HIV. 05.15.2008

Chimps Agree: A Bird in Hand Is Worth Two in the Bush

Chimpanzees are downright conservative when it comes to trading for better food. 05.14.2008

Movie Camera to the Stars

The Earth's fastest telescope aims to make the best sky map ever created. 05.13.2008

Wildlife Conservation 2.0

A new software-based approach may be the key to saving thousands of species. 05.12.2008

The Wonderful World of E. Coli

Carl Zimmer looks inside the dangers—and wonders—of one remarkable bacterium. 05.09.2008