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After someone dies, their microbiome changes in ways that researchers say could be used to gauge how long it's been since death occurred, even after a couple of months, Scientific American reports. This could be a useful tool for forensics, the researchers say, as entomology-based approaches to determining time of death can be influenced by temperature, weather, and geography, among other factors.

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NPR reports that researchers have developed chimeric embryos as part of work toward growing human organs in animals for organ transplants.

According to the Washington Post, the Biden Administration is set to make changes to federal restrictions on fetal tissue research.

In Science this week: approach to isolated trace DNA from archaic humans from sediments, and more.

Texas Monthly looks into the DNA Zoo being collected by Baylor College of Medicine researchers.