30 Second PROMO FOR WEEK OF OCTOBER 28-31 I'm Cecilia Nasti inviting you to tune into Passport to Texas...when I tell you to watch your step when you go on nature walks this fall...it's pleasant enough for us to be outside, and it's also pleasant for venomous snakes....We also tell you about how by using unmanned aerial systems - also called drones - biologists are mapping habitat and saving species. These stories this week Passport to Texas-Your Radio Guide to the Great Texas Outdoors.