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image: The Topography of Teeth

The Topography of Teeth

By | November 29, 2016

Intricate, digital maps of animals’ teeth, created using the same geographical tools used by mapmakers, may help researchers determine the diets of extinct species.

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image: Evolution May Have Deleted Neanderthal DNA

Evolution May Have Deleted Neanderthal DNA

By | November 9, 2016

Natural selection may be behind the dearth of Neanderthal DNA in modern humans.

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image: Ebola Evolved to Become More Infectious

Ebola Evolved to Become More Infectious

By | November 7, 2016

A mutation that appeared early in the 2014 outbreak made the virus more infectious in humans, scientists show.

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image: Neural Network Found That Helps Control Breathing

Neural Network Found That Helps Control Breathing

By | November 1, 2016

The results suggest that breathing is orchestrated by three—rather than two—excitatory circuits in the medulla.

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image: Another Neural Circuit that Controls Breathing Found

Another Neural Circuit that Controls Breathing Found

By | November 1, 2016

This third excitatory network helps to regulate postinspiration.

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image: Protein Folding Pioneer Dies

Protein Folding Pioneer Dies

By | October 28, 2016

Susan Lindquist of MIT and the Whitehead Institute broke scientific ground on prions and heat shock proteins.

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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: 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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