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Eavesdropping Puts Anxious Squirrels at Ease Sep 12, 2019

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Squirrels constantly scan their surroundings for hawks, owls and other predators. But they also surveil for threats by eavesdropping on bird chatter. Christopher Intagliata reports.

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Earth's Magnetic Field Initiated a Pole Flip Many Millennia before the Switch Sep 11, 2019

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Lava flow records and sedimentary and Antarctic ice core data show evidence of planetary magnetic field activity 20,000 years before the beginning of the last pole reversal.

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Humpback Whales Swap Songs at Island Hub Sep 10, 2019

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At the Kermadec Islands, humpbacks from all over the South Pacific converge and swap songs. Christopher Intagliata reports.

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Food Expiration Dates May Mislead Consumers Sep 09, 2019

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Better food labeling could prevent people from throwing away a lot of “expired” food that’s still perfectly edible.

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Farmland Is Also Optimal for Solar Power Sep 05, 2019

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The conditions of sunlight, temperature, humidity and wind that make cropland good for agriculture also maximize solar panel efficiency.

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Chemical Tweak Recycles Polyurethane into Glue Sep 04, 2019

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It’s not easy to recycle polyurethane, so it’s usually tossed out or burned. But a chemical tweak can turn polyurethane into glue. Christine Herman reports.

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Cholesterol Climbs after Crows Chomp Cheeseburgers Sep 03, 2019

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Wild animals that live near humans have higher cholesterol than their rural counterparts—and our food could be to blame. Christopher Intagliata reports.

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How Hurricanes Influence Spider Aggressiveness Aug 30, 2019

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As Hurricane Dorian approaches Florida, consider that feeding style means that aggressive tangle-web spider colonies produce more offspring after severe weather, while docile colonies do better in calm conditions.

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Graphene Garment Blocks Blood-Sucking Skeeters Aug 28, 2019

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A small patch of graphene on human skin seemed to block the mosquitoes’ ability to sense certain molecules that trigger a bite. Christopher Intagliata reports.

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Martian Winds Could Spread Microbe Hitchhikers Aug 26, 2019

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Microbes fly tens of miles over Chile’s dry, UV-blasted Atacama Desert—and scientists say the same could happen on Mars. Christopher Intagliata reports.

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