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» stem cells, immunology and ecology

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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: 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: 2013’s Big Advances in Science

2013’s Big Advances in Science

By | December 24, 2013

A roundup of the stunning progress made in the life sciences this year

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image: Week in Review: December 16–20

Week in Review: December 16–20

By | December 20, 2013

Sex lives of early hominins; Amborella trichopoda genome; surface topography and stem cells; how HIV weakens immune cells; dogs, dust microbes, and mouse allergies; news from ASCB

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image: How HIV Destroys Immune Cells

How HIV Destroys Immune Cells

By | 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.  

1 Comment

image: Surface Texture Influences Differentiation

Surface Texture Influences Differentiation

By | December 18, 2013

The topography of a stem cell’s environment can influence cilia length, which in turn modulates cell signaling and development.

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image: Unhealthy Chemicals Linked to Fracking

Unhealthy Chemicals Linked to Fracking

By | December 17, 2013

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

1 Comment

image: Dogs, Dust Microbes, and Allergies

Dogs, Dust Microbes, and Allergies

By | December 16, 2013

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

2 Comments

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