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image: How, If, and Why Species Form

How, If, and Why Species Form

By , and | November 1, 2013

Biologists have struggled for centuries to properly define what constitutes a “species.” They may have been asking the wrong question—many smaller organisms might not form species at all.


image: Lozano on DBS

Lozano on DBS

By | November 1, 2013

Neurosurgeon Andres Lozano discusses deep-brain stimulation in this TEDx talk.


image: The Ultimate Wingman

The Ultimate Wingman

By | November 1, 2013

Differential gene expression between dominant and subordinate male turkeys could help evolutionary biologists deconstruct the roots of sexual dimorphism.

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image: The Psychiatrist’s Jigsaw

The Psychiatrist’s Jigsaw

By | November 1, 2013

Researchers are piecing together the devilishly complex sets of genetic alterations underlying schizophrenia and bipolar disorder.


image: Waste-Management Consultant

Waste-Management Consultant

By | November 1, 2013

By audaciously pursuing an abandoned area of research, Ana María Cuervo discovered how cells selectively break down their waste, and revealed the health consequences when that process malfunctions.


image: Genetic Diversity in the Brain

Genetic Diversity in the Brain

By | October 31, 2013

Neurons within a person’s brain exhibit striking variations in DNA copy number.


image: Scientists Confirm Bats Carry SARS

Scientists Confirm Bats Carry SARS

By | October 31, 2013

Whole-genome sequences for two novel coronaviruses from Chinese horseshoe bats are the most closely related to the severe acute respiratory syndrome coronavirus to date.


image: Male Mosquitoes Trigger Egg Production

Male Mosquitoes Trigger Egg Production

By | October 29, 2013

Malaria-transmitting female Anopheles gambiae develop eggs upon mating as a result of a steroid hormone injected into them by males.

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image: European Roots for Native Americans?

European Roots for Native Americans?

By | October 29, 2013

An analysis of ancient DNA from a 24,000-year-old Siberian skeleton generates a new model for the original peopling of the Western Hemisphere.


image: New Alzheimer’s-Associated Genes

New Alzheimer’s-Associated Genes

By | October 28, 2013

A GWAS meta-analysis identifies 11 new loci associated with onset of the neurodegenerative disease.


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