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image: Jumping Hosts

Jumping Hosts

By | January 30, 2014

A single amino acid change helps a plant pathogen related to the causative agent of the Irish potato famine infect a new host.

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image: Rethinking Pre-Agricultural Humans

Rethinking Pre-Agricultural Humans

By | January 28, 2014

Analysis of a 7,000-year-old human genome suggests that Mesolithic people had relatively dark skin and had begun to evolve pathogen resistance characteristic of modern Europeans. 

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image: Week in Review: January 20–24

Week in Review: January 20–24

By | January 24, 2014

Mistimed sleep disrupts human transcriptome; canine tumor genome; de novo Drosophila genes; UVA light lowers blood pressure; aquatic microfauna fight frog-killing fungus

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image: New Suspect in Bee Colony Collapse

New Suspect in Bee Colony Collapse

By | January 21, 2014

A virus that causes blight in plants may contribute the catastrophic decline of honeybee colonies.

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image: Older Trees Grow Faster

Older Trees Grow Faster

By | January 20, 2014

Mature trees soak up more CO2 than younger ones, a study shows, overturning a bit of botanical dogma.

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image: Fewer Female Snail Penises

Fewer Female Snail Penises

By | January 14, 2014

Researchers are now spotting fewer cases of imposex—in which female sea snails develop male sexual organs—as a result of a chemical ban instituted in 2008.

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image: Human-Pathogen Coevolution

Human-Pathogen Coevolution

By | January 13, 2014

Helicobacter pylori strains that share ancestry with their human hosts are less likely to cause severe disease.

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image: Large Carnivores Under Siege

Large Carnivores Under Siege

By | January 13, 2014

As populations of top predators decline in ecosystems the world over, researchers chart the widespread effects.

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image: Settlement Signal

Settlement Signal

By | January 9, 2014

A marine bacterium generates contractile structures that are essential for the metamorphosis of a tubeworm.

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image: Outwitting the Perfect Pathogen

Outwitting the Perfect Pathogen

By | January 1, 2014

Tuberculosis is exquisitely adapted to the human body. Researchers need a new game plan for beating it.

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