This ancient symbol, also called the Staff of Hermes, depicts two snakes intertwining around a stick that is capped by wings.

That little blue star is packed with symbolism. Here's what it means—and what you need to know about ambulances that sport ...

This ancient symbol, also called the Staff of Hermes, depicts two snakes intertwining around a stick that is capped by wings. It’s used as a medical logo, but for almost all its roughly 5000 ...