Proponents of 3-D tissue engineering say there's very little point in growing tissue in a 2-D petri dish, because the human body isn't flat and that experimental platforms need to emulate the body's structure more closely, reports Technology Review's Christopher Mims. To that end, a Houston-based company called n3D Biosciences has developed a new technology that uses magnetism to float cells in a 3-D matrix, Mims says.

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Polygamy amplified a rare genetic disease in area near Arizona-Utah border, BBC Future reports.

Genetic ancestry testing led one woman to learn that her father and another baby boy had been switched at birth, the Washington Post reports.

Simple de-identification methods can protect information in a database from attackers, a new study suggests.

In Science this week: approach to visualize chromatin structure in nuclei, and more.