Science Quickly

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Quick Test Could Tell If a Patient Needs Antibiotics Jan 26, 2016

Show notes

Antibiotics work against bacterial infections but are often prescribed to people with viral infections, which don't respond to the drugs. But a new gene test could show if a patient's infection is viral or bacterial.

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Pluto Killer Thinks He Has New Ninth Planet Jan 25, 2016

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Caltech astronomer Mike Brown, the driving force for demoting Pluto, now claims evidence for a massive, distant replacement ninth planet in our solar system.

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Sharks Head Straight Home by Smell Jan 21, 2016

Show notes

Sharks that could smell headed straight back home when taken a few miles away whereas some that had their senses of smell blocked took slower, more erratic paths to their old haunts.

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Volcano Role in Dino Death Gets Mercury Boost Jan 20, 2016

Show notes

Researchers found a spike in mercury, which is produced by volcanoes, in ancient ocean sediments from southern France that span the time of the dinosaurs' mass extinction, lending support to the idea that massive eruptions played a role, in addition to the asteroid impact.

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Healthful Diet Switch Helps Even Late in Life Jan 19, 2016

Show notes

At a Harvard T. H. Chan School of Public Health forum on diet and health, Walter Willett, chair of the school's nutrition department, said that adoption of more healthful eating habits even late in life still has benefits.

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Better Gut Microbiome Census through Computing Jan 18, 2016

Show notes

Sophisticated computational techniques make it possible to analyze gene samples from all the bacteria in the gut at once to take a census of the species present.

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Sociable Chimps Get Richer Gut Microbiomes Jan 15, 2016

Show notes

When food is plentiful and chimps are more chummy, they harbor an increased number of different bacterial species in their bellies.

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Mammoth Find Moves Humans in Arctic Back 10,000 Years Jan 14, 2016

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The remains of a clearly butchered woolly mammoth in Siberia date to 45,000 years ago, 10 millennia earlier than when humans were thought to have crossed north of the Arctic circle.

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City Swans May Tolerate Humans Due to Gene Variant Jan 13, 2016

Show notes

More members of an urban swan population that lets humans get near have a particular genetic variant than do a rural swan group that tends to take off when humans approach.

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Hippo Meat-Munching May Explain Their Anthrax Outbreaks Jan 12, 2016

Show notes

Hippos eat meat more than had been thought, a practice that could explain their susceptibility to anthrax die-offs when they consume infected animals.

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