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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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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: 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: The Ever-Expanding T-Cell World: A Primer

The Ever-Expanding T-Cell World: A Primer

By | August 7, 2017

Researchers continue to identify new T-cell subtypes—and devise ways to use them to fight cancer. The Scientist attempts to catalog them all.

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image: Fascinated by Folding

Fascinated by Folding

By | August 4, 2017

Lila Gierasch uses biochemical tools to understand how linear chains of amino acids turn into complex three-dimensional structures.

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The genomes of two species of water bears reveal clues about how they persist in extreme conditions, yet don’t resolve the animals’ debated evolutionary story.

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A new method stimulates B cells to make human antigen-specific antibodies, obviating the need for vaccinating blood donors or hunting for rare B cells.

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image: Gut Feeling

Gut Feeling

By | June 22, 2017

Sensory cells of the mouse intestine let the brain know if certain compounds are present by speaking directly to gut neurons via serotonin.

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