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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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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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Dog Origins Disputed

By Karen Zusi | December 17, 2015

A genomic study suggests that dogs diverged from wolves in Southeast Asia 33,000 years ago, contrary to reports placing their origins elsewhere on the continent.

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Constant Evolution

By Ruth Williams | December 16, 2015

Bacteria growing in an unchanging environment continue to adapt indefinitely.

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image: Mining the Mite-ochondrial Genome

Mining the Mite-ochondrial Genome

By Tracy Vence | December 14, 2015

Phylogenetic analysis of DNA isolated from human hair follicle–dwelling mites shows that different lineages of the arthropods are associated with hosts with different regional ancestries.

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image: Gut Bugs Affect Cockroach Poop-ularity

Gut Bugs Affect Cockroach Poop-ularity

By Jef Akst | December 9, 2015

Commensal bacteria living in the gastrointestinal tracts of cockroaches lace the insects’ feces with chemical cues that mediate social behavior, according to a study.

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