ScienceBane for dinosaurs, boon for plants: Deadly meteorite helped deciduous forests flourish As dinosaurs went extinct following meteor impact, stage was set for a new competition among plants in the world's forests. Faster-growing deciduous plant species out-competed slower-growing evergreen varieties, study shows.by Jim Algar
ScienceEarly Earth may not have been molten hell, but a place of solid crust and liquid waterby Rebecca Kaplan
SciencePesticide levels down in U.S. waterways: Humans safe but aquatic life in perilby James Maynard
SciencePesticides in our water: Risk to humans down, but risk to aquatic-life holds steadyby Rebecca Kaplan