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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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image: <em>Wolbachia</em>-infected Mosquitoes Released in Florida

Wolbachia-infected Mosquitoes Released in Florida

By | April 19, 2017

The bacterium causes eggs to die, and spreading treated insects is expected to curb Aedes aegypti populations.

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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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A mouse study reveals a causal link between changes in intestinal microbiota and increasing inflammation as the rodents age.

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image: Parasitic Worm Spreads in Hawaii

Parasitic Worm Spreads in Hawaii

By | April 11, 2017

The roundworm that causes rat lungworm disease has infected at least six people on the island of Maui in the last three months.

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Mice exposed to low doses of penicillin in utero or as young pups exhibited long-term behavioral differences not seen in their non-exposed counterparts, according to a study.

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Recolonizing middle-aged animals with bacteria from younger ones kept killifish alive longer than usual, researchers report.

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image: In Certain Social Bees, Gut Microbiomes Follow Phylogeny

In Certain Social Bees, Gut Microbiomes Follow Phylogeny

By | March 29, 2017

Corbiculate bees and their gut-dwelling microbes have been coevolving since the social species evolved from their solitary ancestors around 80 million years ago, scientists suggest. 

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image: Inflammation Drives Gut Bacteria Evolution

Inflammation Drives Gut Bacteria Evolution

By | March 16, 2017

Viruses within Salmonella rapidly spread genes throughout the bacterial population during a gut infection, scientists show.

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