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Harvesting lab-raised zebrafish based on their size led to differences in the activity of more than 4,000 genes, as well as changes in allele frequencies of those genes, in the fish that remained.

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image: Ancient Protein Helps <em>E. coli</em> Thwart Viral Attack

Ancient Protein Helps E. coli Thwart Viral Attack

By | May 9, 2017

When engineered to use a four-billion-year-old version of the protein thioredoxin, the bacteria can stall bacteriophage replication, a new study shows.

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image: Quick and Cheap Zika Detection

Quick and Cheap Zika Detection

By | May 3, 2017

A heat block, a truck battery, and a novel RNA amplification assay make for in-the-field surveillance of the virus.

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image: More Details on How Pesticides Harm Bees

More Details on How Pesticides Harm Bees

By | May 3, 2017

Scientists report that thiamethoxam exposure impairs bumblebees’ reproduction and honey bees’ ability to fly.

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From fish harvests to cottonwood forests, organisms display evidence that species change can occur on timescales that can influence ecological processes.

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Guppies transplanted between different communities in Trinidadian streams evolved in response to changes in predation threat in just a few generations.

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Scientists are criticizing the claim that hominins were in North America more than 100,000 years earlier than the currently accepted estimation.

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Studies of infected rhesus monkeys reveal the virus’s long-term hiding places in the body.

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image: Migratory Eels Use Magnetoreception

Migratory Eels Use Magnetoreception

By | April 14, 2017

In laboratory experiments that simulated oceanic conditions, the fish responded to magnetic fields, a sensory input that may aid migration.

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image: Contributors

Contributors

By | April 1, 2017

Meet some of the people featured in the April 2017 issue of The Scientist.

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