Life
We summarize the week's scientific breakthroughs every Thursday.
- Life
Reprieve for reprogrammed stem cells
A study published in 2011 in Nature found that stem cells produced by reprogramming mouse skin cells get attacked when transplanted back into mice.
- Life
City lights create sexual early birds
Male blackbirds exposed to nocturnal illumination are ready to mate sooner in spring.
- Life
Corals beat heat by being prepared
Warming waters have little effect on reef-building organisms that activate adaptive genes before the temperature starts to rise.
- Humans
Language learning may begin before birth
Newborns show signs of having tracked moms’ speech while still in the womb.
- Genetics
Contest brings out the biohackers
Mix one part enthusiasm, two parts engineering and three parts biology — and you’ve got a recipe for do-it-yourself genetic engineering. Every November, college kids from Michigan to Munich descend on MIT, eager to show off their biohacking skills. In the International Genetically Engineered Machine (iGEM) competition, teams battle one another to build the coolest synthetically altered organisms. If you want to create a microbe that will sniff out and destroy contaminants in mining waste ponds, or a cell that will produce drugs right in your body, iGEM is for you.
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- Life
Victorian zoological map redrawn
Species distribution patterns that inspired Darwin and Wallace get an update.
- Chemistry
Repellent slime has material virtues
Threads isolated from hagfishes' defensive goo demonstrate superior strength and flexibility.
- Science & Society
Cell biologists hone elevator pitches
Competition challenges scientists to summarize their work for a captive lay audience.
- Life
Pressure keeps cancer in check
In lab experiments, physically confining malignant cells prevents runaway growth.
- Life
Heart telltale
Engineered cells that flash when they beat may offer a new way to test drugs for cardiac toxicity.
