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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: Second Chance for Lost Galapagos Tortoises?

Second Chance for Lost Galapagos Tortoises?

By | September 14, 2017

Researchers are trying to recreate an extinct species of the lumbering reptiles by breeding closely related species that contain traces of the lost lineage’s DNA.

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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: Custom-Made Molecules

Custom-Made Molecules

By | August 21, 2017

A new prototype machine can make the biological molecules of one’s choice from digital DNA sequences.

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image: Dengue Infection Impairs Immune Defense Against Zika

Dengue Infection Impairs Immune Defense Against Zika

By | August 18, 2017

A memory B cell response to Zika virus in dengue-infected patients produced antibodies that were poorly neutralizing in vitro and instead enhanced infection.

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image: Vaccine Blocks Psychostimulant Drug in Mice: Study

Vaccine Blocks Psychostimulant Drug in Mice: Study

By | August 17, 2017

Scientists also show that fenethylline’s chemical constituents work together to produce its rapid, potent effects, which have been exploited by Islamic State fighters.

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image: Pollution Drives Marine Reptile Color Change

Pollution Drives Marine Reptile Color Change

By | August 11, 2017

The turtle-headed sea snake is losing its stripes, and researchers suggest that the change reflects adaptation to fouled oceans.

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