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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: Vitamin C Depletion Accelerates Leukemia in Mice

Vitamin C Depletion Accelerates Leukemia in Mice

By | August 21, 2017

High levels of vitamin C absorbed by blood-forming stem cells are important for their normal development. 

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image: Vitamin C Blocks Leukemia Progression in Mice

Vitamin C Blocks Leukemia Progression in Mice

By | August 17, 2017

High-dose vitamin C injections reverse the effects of a leukemia-promoting genetic deficiency.

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image: The Cancer Genes Needed for Immunotherapy Response

The Cancer Genes Needed for Immunotherapy Response

By | August 7, 2017

Using a large CRISPR-based screen, researchers find possible genetic culprits for patients not having success with immune checkpoint inhibitors.  

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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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Two freely available databases include data on hundreds of human cancer cell lines. 

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