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image: How Poison Frogs Avoid Poisoning Themselves

How Poison Frogs Avoid Poisoning Themselves

By | 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: Icelanders’ Genomes Hint at Origins of Genetic Diversity

Icelanders’ Genomes Hint at Origins of Genetic Diversity

By | 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 | 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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A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two.

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image: Mongolian Dinosaurs and the Poaching Problem

Mongolian Dinosaurs and the Poaching Problem

By | September 8, 2017

High-profile cases of poached fossils shine a light on the black market for paleontological specimens—and how scientists and governments are trying to stop it.

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image: Booger Bacteria’s Sweet Immune Suppression

Booger Bacteria’s Sweet Immune Suppression

By | September 6, 2017

Sweet taste receptor-activating molecules produced by sinus microbes suppress the local innate immune system in humans.

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image: Fingerprints of Ongoing Human Evolution Found

Fingerprints of Ongoing Human Evolution Found

By | 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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image: Global Patterns of Human Epigenetic Variation

Global Patterns of Human Epigenetic Variation

By | August 28, 2017

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

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image: Organs on Chips

Organs on Chips

By | August 28, 2017

Scientists hope that these devices will one day replace animal models of disease and help advance personalized medicine.

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image: A Bacterial Messenger Molecule Extends Healthspan

A Bacterial Messenger Molecule Extends Healthspan

By | August 28, 2017

E. coli that make indoles protect older worms, flies, and mice from frailty. 

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