SN Online

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

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.  Read “A little radiation is good for mice.”

Humans today carry far more rare genetic variants than scientists ever imagined. See “Across 1,000 genomes, rarities abound.”