Viruses called bacteriophages make a living picking on certain bacteria. But these viruses have had limited use as antibiotics. Biomedical engineer Jim Collins explains how his team was able create a better bacteriophage, capable of attacking even antibiotic-resistant bugs.

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The National Phenology Network is recruiting people across the U.S. to record when trees bud, flowers bloom and migrating animals return. The project's executive director, Jake Weltzin, explains how tracking these trends can help scientists better understand climate change.

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Tens of thousands of bats have been dropping dead in the Northeast, all exhibiting symptoms of the poorly understood "white-nose syndrome." Ecologist Justin Boyles explains how installing heated boxes in caves could help hibernating bats with white-nose syndrome survive the winter.

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Sand is difficult terrain for robots. But Daniel Goldman, a physicist at Georgia Institute of Technology, and his colleagues looked to lizards and cockroaches for inspiration, and figured out how to engineer a robot that isn't slowed by soft ground.

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Archaeologists reporting in the journal Science say they've found evidence that humans raised horses nearly 5,500 years ago in present day Kazakhstan. Alan Outram presents the evidence suggesting that the Botai culture kept horses for milking and possibly riding.

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