Nigeria officially records at least 2,500 new leprosy cases annually, and over 400,000 people live with the long-term ...

The complexity of vocal communication in some primates, whales and birds might approach that of human language.

Mary Lee McNelis suffers from a speech impediment. But her mother and grandmother never gave up on her. They reminisce with StoryCorps about Mary's long journey to finding her voice.

Cell division is one of the most thoroughly studied processes in biology, yet many of its details remain mysterious. A century-old puzzle surrounding the "crown" of cell division—the kinetochore ...