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Freeze-Tolerant Flies

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Organisms that live at the frigid poles of our planet have evolved strategies to withstand temperatures that would kill most species instantly. Some secrete ice-nucleating substances that control the freezing process, for example, while others accumulate anti-freeze proteins that allow their cells to remain unfrozen even at subzero temperatures, a phenomenon known as supercooling.

Now, researchers in the Czech Republic have shown that some of these strategies can be conferred upon species that would otherwise succumb to the cold, like the temperate-adapted Drosophila melanogaster.

The results, published today (February 13) in the Proceedings of the National Academy of Sciences, could have implications for tissue storage and cyropreservation strategies for more complex organisms.

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VIDEO: The Promise and Peril of Drones

CummingsDrones

The automation of tasks at work and at home is just around the corner, including driving cars, piloting planes, delivering packages, and transporting weapons. Unmanned aerial vehicles are rapidly evolving to meet both society’s and the military’s needs in automation and better efficiency.
During her time as one of the first female fighter pilots in the US Navy, Dr. Missy Cummings observed that computers could take off and land a plane more precisely than humans. Because of this breakthrough and her fascination with this growing technology, she began human–drone interaction research.

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