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image: Natural Selection Kept Neanderthal DNA in Modern Humans

Natural Selection Kept Neanderthal DNA in Modern Humans

By | December 29, 2016

Interbreeding with Neanderthals appears to have reintroduced genetic sequences related to innate immunity that had been lost as humans migrated out of Africa. 

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image: How These Rodents Got Their Stripes

How These Rodents Got Their Stripes

By | November 2, 2016

The African striped mouse and the chipmunk develop dorsal stripes through a newly identified mechanism of coat color variation.

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image: Week in Review: October 24–28

Week in Review: October 24–28

By | October 27, 2016

Patient Zero exonerated; Jack Woodall dies; Wolbachia-harboring mosquitoes deployed in fight against Zika; implanted neurons function in adult mouse brain 

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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: Many Evolutionary Paths Lead to Same Bird Trait

Many Evolutionary Paths Lead to Same Bird Trait

By | October 20, 2016

Diverse genetic changes lead to remarkably similar hemoglobin adaptations of diverse bird species, a study finds. 

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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: 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: Using RNA to Amplify RNA

Using RNA to Amplify RNA

By | August 15, 2016

Researchers apply in vitro evolution to generate an RNA enzyme capable of copying and amplifying RNA.

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image: Nailing Down HAR Function

Nailing Down HAR Function

By | August 1, 2016

A remaining challenge in the study of human accelerated regions (HARs) is establishing their specific functions during development and other biological processes.

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image: On Becoming Human

On Becoming Human

By | August 1, 2016

Some thoughts on going to the Galápagos

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