If you look inside a rattlesnake rattle, you’ll find it’s actually hollow. Instead of shaking loose bits like a maraca to make that famous sound, rattlesnakes clack together segments of keratin — the ...

The trick is a surprising instance of mammal-snake coevolution. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The menacing rattle of a ...

At the University of Arkansas in Fayetteville, rattlesnakes under the care of James Van Dyke are brought into the classroom of Jessica Nolan. Today's sound clip comes from two people who've been ...

Have you ever heard a rattlesnake rattling up close? It turns out the venomous reptiles change the frequency of their rattle the closer humans get to them, according to a new study published Thursday ...