Fishy chemicals in farmed salmon

Persistent organic pollutants—or POPs—skulk around the environment threatening human health through direct contact, inhalation, and most commonly, eating contaminated food. As people are becoming more aware of their food's ...

How do you build a metal nanoparticle?

Although scientists have for decades been able to synthesize nanoparticles in the lab, the process is mostly trial and error, and how the formation actually takes place is obscure. However, a study recently published in Nature ...

Altering genes with the aid of light

Scientists have been manipulating genes for a while. The University of Pittsburgh's Alexander Deiters just found a way to control the process with higher precision.

Body plan evolution not as simple as once believed

The role of Hox genes in changing the layout of different body parts during evolution has been challenged by a study led by researchers out of the University of Pittsburgh's Department of Biological Sciences.

Mathematicians explain how some fireflies flash in sync

Stake out in Pennsylvania's Cook State Forest at the right time of year and you can see one of nature's great light shows: swarms of fireflies that synchronize their flashes like strings of Christmas lights in the dark.

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