In a giant feat of genetic engineering, scientists have created bacteria that make proteins in a radically different way than all natural species do. By Carl Zimmer At the heart of all life is a code.

In recent years, the U.S. Food and Drug Administration has approved more than a dozen gene-editing and cell-based therapies. We are now in the second great wave of the genetic revolution, not defined ...

The genetic code is the recipe for life, and provides the instructions for how to make proteins, generally using just 20 ...