The average person recognizes 5,000 faces |Nature Briefing(2)

Mice born from same-sex parents have their own pups 

For the first time, researchers have used the DNA from two female mice to create healthy pups, some of which matured and had their own offspring. The scientists also produced baby mice using the combined genetic material from two male mice, although those pups lived for only a couple of days. Researchers deleted genetic regions from stem cells to create the test-tube pups, illuminating how healthy embryos develop. Most of the embryos did not survive, making it unlikely that the technique would ever be applied to humans.

Nature | Read this article at nature.com/latest-news

Economic woes hit Argentina’s scientists 

Science and technology are “collapsing” under austerity measures and rising inflation, say researchers in the country. Fewer grants, a weakening of buying power and delayed payments are all having an effect. “There are research centres that cannot pay for illumination or gas. Their lab rats and cell lines are dying,” says physicist Fernando Stefani. Officials with the government say they hope to ease the pain, but it has been hard for them to react quickly enough to the slide of the peso. 

Nature | Read this article at nature.com/latest-news

The average person recognizes 5,000 faces 

Researchers quizzed people on images of famous faces to extrapolate that humans seem to recall about about 5,000 faces, on average. Even the most face-blind among the participants knew about 1,000 faces.

Nature | Read this article at nature.com/nature/articles?type=research-highlight