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image: Week in Review: October 17–21

Week in Review: October 17–21

By | October 21, 2016

Report finds that pathologist involved in anonymous defamation case committed multiple acts of misconduct; growing eggs from stem cells; neutrophils’ role in metastasis; convergent evolution in birds

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image: Single-Celled Life Primed to Go Multicellular

Single-Celled Life Primed to Go Multicellular

By | October 17, 2016

The unicellular ancestor of animals may have harbored some of the molecular tools that its many-celled descendants use to coordinate and direct cell differentiation and function, scientists show.

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image: Study: Human Life Span Maxed Out

Study: Human Life Span Maxed Out

By | October 6, 2016

Scientists argue that current medical advances cannot crack Homo sapiens’s natural age limit.

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image: Evidence Lacking for Brain-Training Products

Evidence Lacking for Brain-Training Products

By | October 4, 2016

A literature review finds little evidence that commercial brain-training games can improve everyday cognitive performance, citing methodological shortcomings.

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image: Early-Life Stress Affects Telomeres Later

Early-Life Stress Affects Telomeres Later

By | October 3, 2016

An accumulation of stressful events in childhood is associated with shorter telomeres as a person ages, researchers report. 

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image: Church on the Late Show

Church on the Late Show

By | October 1, 2016

Harvard biologist George Church talks gene therapy, aging, and reviving the woolly mammoth with Stephen Colbert.

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image: How Plants Evolved Different Ways to Make Caffeine

How Plants Evolved Different Ways to Make Caffeine

By | September 21, 2016

Caffeine-producing plants use three different biochemical pathways and two different enzyme families to make the same molecule.

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image: Stingrays Chew Too

Stingrays Chew Too

By | September 15, 2016

Researchers observe stingrays moving their jaws to grind up prey, a behavior thought to be restricted to mammals.

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image: Week in Review: September 5–9

Week in Review: September 5–9

By | September 9, 2016

Environmental magnetite in the human brain; prion structure takes shape; watching E. coli evolve in real time; learning from others’ behavior 

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image: Giant Petri Dish Displays Evolution in Space and Time

Giant Petri Dish Displays Evolution in Space and Time

By | September 8, 2016

As E. coli bacteria spread over increasingly concentrated antibiotics, researchers discover novel evolutionary pathways that confer resistance.

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