This Week in Nature

Scientists at the Oregon Health and Science University show in work published in the early online edition of Nature this week that they can replace a diseased mitochondrial genome in egg cells. Using a technique called spindle-chromosomal complex transfer, they transferred the mitochondrial genome from a mature Macaca mulatta egg cell into another egg cell that had a nucleus but no mitochondrial genome. From these, they were able to give birth to healthy monkeys.

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The New York Times and ProPublica look into the close relationship between a startup and Memorial Sloan Kettering Cancer Center.

Yahoo News reports millions of dollars are being transferred from NIH, CDC, and other programs to pay for the housing of detained undocumented immigrant children.

In Science this week: in vitro generation of human reproductive cells, and more.

Researchers gave a handful of octopuses MDMA to find that they too act more social on the drug, Gizmodo reports.