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image: Gut Microbes Need Fiber, Too

Gut Microbes Need Fiber, Too

By Karen Zusi | January 13, 2016

A low-fiber diet decimated the diversity of bacterial species in mice colonized with human gut microbes in a recent study.

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image: Counting Cells

Counting Cells

By Jef Akst | January 11, 2016

A person likely carries the same number of human and microbial cells, according to a new estimate.

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image: How Multicellularity Arose

How Multicellularity Arose

By Jef Akst | January 11, 2016

Researchers identify a molecule that may have been key to the surprisingly common transition from single-celled ancestors to today’s complex, multicellular organisms. 

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image: Genome Digest

Genome Digest

By Catherine Offord | January 8, 2016

What researchers are learning as they sequence, map, and decode species’ genomes

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image: All Together Now

All Together Now

By Mary Beth Aberlin | January 1, 2016

Understanding the biological roots of cooperation might help resolve some of the biggest scientific challenges we face.

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Contributors

By Karen Zusi | January 1, 2016

Meet some of the people featured in the January 2016 issue of The Scientist.

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image: Inventing Teamwork

Inventing Teamwork

By The Scientist Staff | January 1, 2016

What can social networks among hunter-gatherers in Tanzania teach us about how cooperation evolved in human populations?

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image: To Retain a Brain

To Retain a Brain

By Karen Zusi | January 1, 2016

Exceptional neural fossil preservation helps answer questions about ancient arthropod evolution.

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image: Maintaining Cooperation

Maintaining Cooperation

By R. Ford Denison and Katherine Muller | January 1, 2016

How organisms keep their biological partners from cheating

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image: Ancient Irish

Ancient Irish

By Jef Akst | December 30, 2015

The genomes of a 5,200-year-old woman and three 4,000-year-old men yield clues about the founding of Celtic populations.

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