Scientists rebuilt the face of “Little Foot,” a 3.67-million-year-old fossil, uncovering new clues about early human ...

What are their secrets? Do they eat breakfast? Skip lunch? Exercise every day? What genes helped keep them strong and disease-free, years longer than most people? But across the animal kingdom, ...

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

The natural and the social world shaped the evolution of each. Knowing whom to invite to dinner is as important as knowing ...