Follow a day-by-day account of Katrina's wrath, from its birth in the Atlantic Ocean to the storm's costly aftermath. Warning: contains some graphic imagery
Coastal erosion, wetlands die-off, and shrinking barrier islands are the lasting impacts still being felt a year after the major storm hammered the U.S. Gulf Coast.
A volcanic eruption that may have inspired the myth of Atlantis was up to twice as large as previously believed, scientists say, making it the second-largest eruption in human history.
A year after Hurricane Katrina, new laws and big shelters are cropping up nationwide to better accommodate pets during a disaster. But so are lawsuits over the storm's pet refugees.
Mid-Atlantic states are sinking old rail cars, armored tanks, and boats off their shores to create havens for oysters, mussels, and many species of fishas well as recreational fishers.
Huge hordes of jellyfish are plaguing Mediterranean beaches, stinging tens of thousands of vacationers. Experts blame the invasion on warming seas and overfishing of the jellies' competitors.
This week: Interview with Snakes on a Plane wrangler, snake threat helped eyes evolve, ancient embryos x-rayed, U.S. lags behind in acceptance of evolution, more.
Two plants planned in the U.S. Midwest will produce millions of gallons of ethanol using power derived from the area's most abundant but least appreciated resource.
Boaters on the Suwannee River are having close encounters with curious creaturesgiant Gulf sturgeon that leap out of the water for reasons scientists don't understand.
The carbon dioxide produced by burning fossil fuels could be stored beneath the world's seabeds, researchers say, as a way of stemming the effects of global warming.
A new study shows that 46 percent of U.S. rabies cases are caused by bats15 percent more than the amount attributed to dogsand August is peak season for rabid-bat infections.
The Herbert Hoover Dike around Florida's Lake Okeechobee could easily fail during a hurricane or if the lake's water level rises, according to a new report.
Global warming of more than 5.5°F (3°C) substantially increases chances of widespread floods, droughts, and fires, while lower rises dramatically drop that risk, researchers say.
A 5-gallon (18.9-liter) leak spurred a production shutdown at the U.S.'s largest reserve and triggered a new round of debate over the aging pipeline's future.