[Audio of rattlesnake rattle.] The warning of a rattlesnake. Now, just because a rattlesnake's tail sounds like a built-in maraca doesn't mean it works like one. There are no beads rattling about ...

Here's a guide to what snakes are venomous throughout Nevada, how to spot them and what to do if you get bit.

how to spot them and what to do if you get bit. Rattlesnakes in North America typically have thick bodies, arrow-shaped heads and a rattle at the end of their tails that they shake when threatened.