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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: Week in Review: January 27–31

Week in Review: January 27–31

By | January 31, 2014

Stimulus-triggered pluripotency; antioxidants speed lung tumor growth; the importance of seminal vesicles; how a plant pathogen jumps hosts


image: New River Dolphin

New River Dolphin

By | January 27, 2014

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


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


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: Bacterial Persisters

Bacterial Persisters

By | January 1, 2014

A bacterial gene shuts down the cell's own protein synthesis, which sends the bacterium into dormancy and allows it to outlast antibiotics.


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.


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