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image: Polymer Protects Mouse Heart

Polymer Protects Mouse Heart

By Jef Akst | January 20, 2014

Injection of microscopic particles of a plastic-like material protects mice from cardiac tissue damage following heart attack.

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image: Older Trees Grow Faster

Older Trees Grow Faster

By Bob Grant | January 20, 2014

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


image: Fewer Female Snail Penises

Fewer Female Snail Penises

By Tracy Vence | 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.


image: Large Carnivores Under Siege

Large Carnivores Under Siege

By Bob Grant | January 13, 2014

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


image: Settlement Signal

Settlement Signal

By Abby Olena | January 9, 2014

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


image: How HIV Destroys Immune Cells

How HIV Destroys Immune Cells

By Dan Cossins | December 19, 2013

During HIV infection, CD4 T cells in lymphoid tissues initiate a highly inflammatory form of cell death that helps cripple the immune system.  

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image: Unhealthy Chemicals Linked to Fracking

Unhealthy Chemicals Linked to Fracking

By Jef Akst | December 17, 2013

Water samples collected from natural gas extraction sites in Colorado contain hormone-disrupting chemicals linked to birth defects, infertility, and cancer.

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image: Dogs, Dust Microbes, and Allergies

Dogs, Dust Microbes, and Allergies

By Ed Yong | December 16, 2013

Dust-borne bacteria from houses with dogs can prevent allergies in mice by changing their gut microbes.


image: Cancer and Immune Cells Merge

Cancer and Immune Cells Merge

By Kate Yandell | December 16, 2013

Mouse colon cancer cells can fuse with macrophages, leading to changes in tumor growth.


image: A Cancer Culprit in Autoimmunity

A Cancer Culprit in Autoimmunity

By Ruth Williams | December 5, 2013

Scientists discover that cancer can drive the autoimmune disorder scleroderma.


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