In this first of four stories on the United States' dependence on foreign oil, NPR's Christopher Joyce looks at the effect war with Iraq may have on US oil supply and demand.
Christopher Joyce is a correspondent on the science desk at NPR. His stories can be heard on all of NPR's news programs, including NPR's Morning Edition, All Things Considered, and Weekend Edition.
A new study reveals how a group of killer whales is able to hunt whale sharks, adding to a growing body of research showing how the whales use intelligence and coordination in impressive ways.
With efforts to bolster the federal Voting Rights Act unlikely under Republican control of the new Congress, advocates are refocusing on state protections against racial discrimination in elections.
Many animals get their external marking--like, feathers, hair or scales-from genetics. But it turns out, the crocodile gets its head patterns differently.