Chemists found a way to identify a complex sugar molecule in the cell walls of Mycobacterium tuberculosis, the world's deadliest pathogen. This labeling could lead to simpler, faster TB tests.

Neuroscientists are developing methods to map the brain systems that allow us to recognize and get around our world.

Some reef fish have the unexpected ability to move their jaws from side to side, biologists have discovered. This ability -- which is rare among vertebrate animals -- allows these fish to feed rapidly ...