Human aging is not what natural selection failed to prevent. It is what happens when selection simply has nothing left to act ...

Most human pregnancies result in one baby because hormone feedback quickly limits egg selection, a new study explains.

There’s more history in your blood types than you think, and it didn’t begin with humans. Here’s what we know about them, ...

Why Do We Have Different Seasons? The cycle of the seasons is caused due to how Earth moves around the sun and because of its ...

In Focus delivers deeper coverage of the political, cultural, and ideological issues shaping America. Published daily by ...

The act of emotional crying is far from random or useless. Instead, it seems to be woven deeply into our social and emotional ...

In “Why Do We Exist?” Hakeem Oluseyi explores how life may emerge to move energy through matter—and why Earth is the perfect ...

A team of scientists has identified a new physical mechanism that could help explain one of the most persistent mysteries in ...

A new Cosmopolitan survey reveals how guys are still largely unbothered by letting women shoulder the physical and emotional ...

Scientists have uncovered a surprising new picture of human origins that challenges the long-held idea of a single ancestral ...

Each month during a woman's menstrual cycle, an ovary prepares 10–20 antral follicles, fluid-filled sacs that hold immature ...

In 2001 scientists studying human language made a breakthrough: by looking at the DNA of a family with a rare speech ...