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image: Self-Improvement Through the Ages

Self-Improvement Through the Ages

By | February 1, 2014

A 50,000-generation-long experiment shows that bacteria keep getting fitter.


image: Report: Drugs in Farm Feed, Despite Risk

Report: Drugs in Farm Feed, Despite Risk

By | January 28, 2014

A new analysis of government studies on animal feed uncovers widespread use of antibiotics, some of which pose risks to human health.

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image: New River Dolphin

New River Dolphin

By | January 27, 2014

DNA sequencing study reveals a new river dolphin species in South America.


image: <em>Drosophila</em>’s New Genes

Drosophila’s New Genes

By | January 23, 2014

An analysis of the transcriptomes of several fruit fly strains reveals dozens of possible de novo genes in each.


image: The Shared Perfumes of Queens

The Shared Perfumes of Queens

By | January 16, 2014

Ant, bee, and wasp queens emit a similar class of pheromones that sterilize their workers, hinting at a shared ancestry for these chemicals.

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image: Clocks Versus Rocks

Clocks Versus Rocks

By | January 14, 2014

A new analysis suggests that placental mammals originated while dinosaurs were dominant, contradicting a recent high-profile study.


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.


image: Book Excerpt from The Monkey’s Voyage

Book Excerpt from The Monkey’s Voyage

By | January 1, 2014

In Chapter 7, “The Green Web,” author Alan de Queiroz describes the evolutionary journey taken by a South American species of sundew plant.


image: Drawn to Controversy

Drawn to Controversy

By | January 1, 2014

By digging through dusty storerooms and reading dead people’s mail, science historian and philosopher Michael Dietrich keeps biologists attuned to the past and mindful of the present.


image: Evolution’s Stowaways

Evolution’s Stowaways

By | January 1, 2014

Terrestrial mammals, carnivorous plants, and even burrowing reptiles have spread around the globe by braving the seven seas. These chance ocean crossings are rewriting the story of Earth’s biogeography.



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