The sound of a rattlesnake's rattle is perhaps the most frightening sound you could hear on a hike. But how and why do these snakes make this iconic noise? "Everything tells us that they rattle to ...

Hearing a rattle as you drive is irritating. What makes it more annoying is that a rattle can indicate a simple-to-fix problem that will cost almost nothing to repair or a significant issue that could ...

Following is a transcript of the video. Narrator: If you're hiking pretty much anywhere in the US, this is one sound you don't want to hear... [Audio of rattlesnake rattle.] The warning of a ...