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Researchers at Penn State have created a new smartphone app called "TimeTree," an interactive interface that tracks the evolution of genes throughout Earth's history. The comparative biology application draws on the vast amounts of data on the Internet about the diverse genes of Earth's organisms, allowing users to see how long ago two species may have shared a common ancestor, the researchers say in a press release.

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

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

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.