California's dry regions are hotspots of plant diversity

The first "big data" analysis of California's native plants, using digitized information from more than 22 herbaria and botanical gardens around the state, provides some surprises about one of the most thoroughly studied ...

Appeals court sides with Google in anti-Muslim film case

A federal appeals court panel should not have forced YouTube to take down an anti-Muslim film that sparked violence in the Middle East and death threats to actors, a larger group of judges ruled Monday in a victory for free ...

Why did NASA scientists name a geologic feature on Mars "Aztec"?

Last week, NASA mission controllers for the Mars rover Curiosity spied a piece of rock outcropping with tiny holes, veins and fractures in the rocks. It's common practice for the science team to assign names to these targets ...

Ticks and endangered voles linked by migrating birds

Migrating birds probably did it. That's what University of California, Davis, epidemiology professor Janet Foley says after DNA detective work confirmed that a disease-carrying tick only found in the southeastern United States ...

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