Most Recent

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.

3 Comments

image: Gene Therapy Improves Sight

Gene Therapy Improves Sight

By | January 17, 2014

Patients progressing toward blindness now have better vision after a gene therapy trial.

0 Comments

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.

1 Comment

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.

3 Comments

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.

0 Comments

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.

3 Comments

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.

5 Comments

image: Week in Review: January 6–10

Week in Review: January 6–10

By | January 10, 2014

Bacterial genes aid tubeworm settling; pigmentation of ancient reptiles; nascent neurons and vertebrate development; exploring simple synapses; slug-inspired surgical glue

0 Comments

image: First North American H5N1 Death

First North American H5N1 Death

By | January 9, 2014

A person in Canada has died of the first confirmed human case of H5N1 avian flu in North America.

0 Comments

image: Settlement Signal

Settlement Signal

By | January 9, 2014

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

0 Comments

Popular Now

  1. Major German Universities Cancel Elsevier Contracts
  2. Grass Routes
    Features Grass Routes

    Researchers are discovering a suite of new locations and functions of endocannabinoid receptors that play roles in sickness and in health.

  3. Studies Retracted After UCLA Investigation
  4. Trump Nominates Sam Clovis to Lead USDA Research
AAAS