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image: Sexual Touch Promotes Early Puberty

Sexual Touch Promotes Early Puberty

By Ruth Williams | September 21, 2017

The brains and bodies of young female rats can be accelerated into puberty by the presence of an older male or by stimulation of the genitals.

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image: How Poison Frogs Avoid Poisoning Themselves

How Poison Frogs Avoid Poisoning Themselves

By Abby Olena | September 21, 2017

Amphibians resist their own chemical defenses with amino acid modifications in the sequence for a target receptor.

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image: The Cellular Hallmarks of Consciousness

The Cellular Hallmarks of Consciousness

By Anna Azvolinsky | September 21, 2017

Recording from single neurons of epilepsy patients, neuroscientists show that both the strength and timing of neuronal firing are important to consciously perceive a visual object. 

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image: Icelanders’ Genomes Hint at Origins of Genetic Diversity

Icelanders’ Genomes Hint at Origins of Genetic Diversity

By Ashley Yeager | September 20, 2017

An analysis of 14,000 genomes reveals regions where new mutations are more likely to develop.

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image: Cargo-Sorting DNA Robots

Cargo-Sorting DNA Robots

By Ruth Williams | September 14, 2017

Autonomous molecules that collect, carry, and sort different genetic packages usher in a new era for nucleic-acid robotics. 

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image: Fingerprints of Ongoing Human Evolution Found

Fingerprints of Ongoing Human Evolution Found

By Shawna Williams | September 5, 2017

Genetic variants in Alzheimer’s- and smoking-related genes appear to be under selection pressure, according to a study comparing the genomes of old and young participants.

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Neurons derived from human induced pluripotent stem cells fill in for lost dopamine neurons in a primate model of the disease.

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image: Robotic Patch Clamping Gains Eyes

Robotic Patch Clamping Gains Eyes

By Diana Kwon | August 30, 2017

Two groups of scientists combined automation with two-photon microscopy to target and record specific neurons in living animals. 

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image: Global Patterns of Human Epigenetic Variation

Global Patterns of Human Epigenetic Variation

By Ashley Yeager | August 28, 2017

A study of five far-flung human populations gives clues to adaptations to environmental pressures.

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image: Driving Down Pests

Driving Down Pests

By Amy Lewis | August 28, 2017

A computer model estimates that gene-drive technology could wipe out populations of an invasive mammal on islands. 

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