Humans recognize their world 80 percent of the time through their eyes. Learn more about your five senses, the good and the bad. Science Trek is available to stream on pbs.org and the free PBS App, ...

Discover how modern science identifies up to 33 sensory systems, including proprioception and interoception, that shape our perception and health.

Growing up, most of us learned about the five senses: sight, hearing, smell, taste, and touch. But it's time to rewrite the science textbooks – at least if one scientist has anything to do with it.

For the first time, researchers have determined how a human olfactory receptor captures an airborne scent molecule, the pivotal chemical event that triggers our sense of smell. Whether it evokes roses ...