Men have nipples, mammary glands and the hormones required, but the ability for male lactation rarely turns on. Here’s why ...

We often see the results of evolution, but not the process directly. Now, scientists have been treated to front row seats of evolution unfolding in real time, as two similar lizard species encounter ...

Frances Arnold's game-changing technique of "directed evolution" creates enzymes with unusual capabilities. Her own evolution made it possible.

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As our evolution slows and industrialization and technology accelerates, a growing body of research suggests that human biology is struggling to keep pace. Many of the chronic stress-related health ...

The story of life’s beginnings gets stranger when you look closely at viruses. These tiny entities seem to sit at the edge of biology. They carry genetic material, but they cannot make proteins on ...

One hundred years ago a young teacher, John T. Scopes, went on trial in Dayton, Tenn., for violating a recently enacted state law that forbade the state’s educators “to teach any theory that denies ...