Ministers in the UK say that they are working to limit the number of animals used in scientific research, Nature reports. The science minister, David Willet, says that the government plans to follow the "3R" approach of reducing, replacing, and refining the use of animals in research.

Willet notes that the while the number of animals used may decline, the number of procedures involving animals might not change.

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Jay Shendure and his colleagues have developed a new method to more comprehensively identify human cell types, the NY Times reports.

Researchers in the UK and Japan have shown that infertility in mice with three sex chromosomes can be overcome, according to the Guardian.

China is embracing preimplantation genetic diagnosis, Nature News reports. 

In PLOS this week: host genetic factors associated with cervical neoplasia progression, population patterns for an ancient flowering rainforest plant, and more.