ENVIRONMENT
Lab experiments show that low exposures to oil spills can kill young fish. See “Gulf spill harmed small fish, studies indicate.”

Benjamin Dubansky/LSU

MATTER & ENERGY
Underwater landslides are more complex than dry avalanches. Read “Underwater avalanches go with the flow.”

GENES & CELLS
Pregnant rodents receiving low doses of radioactivity gave birth to healthier pups than nonirradiated rodents.