Dogs, antennas and honey for Japan's big bear problem

Thousands of bears are being shot in Japan each year as they become more and more of a problem. Junpei Tanaka and his dog Rela, straining at her leash in the woods, have a kinder, smarter way.

AI can teach math teachers how to improve student skills

When middle school math teachers completed an online professional development program that uses artificial intelligence to improve their math knowledge and teaching skills, their students' math performance improved.

Microbes could help reduce the need for chemical fertilizers

Production of chemical fertilizers accounts for about 1.5% of the world's greenhouse gas emissions. MIT chemists hope to help reduce that carbon footprint by replacing some chemical fertilizer with a more sustainable source—bacteria.

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