The best time to seek Yooperlites and other stones is after a storm, when waves have disrupted and uncovered new rocks.

The ocean can look calm, inviting and even harmless. But just beneath that postcard-perfect surface, there’s a force that can quietly pull even strong swimmers away from shore in seconds. They’re ...

Add Yahoo as a preferred source to see more of our stories on Google. There are more tornadoes in the US than anywhere else on Earth. How do they form? This is in part because of the geography of the ...

There are more tornadoes in the US than anywhere else on Earth. How do they form? This is in part because of the geography of the US. (AP video/Laura Bargfeld, Shelby Lum. AP animation/Eva Malek) ...

There are more tornadoes in the US than anywhere else on Earth. How do they form? This is in part because of the geography of the US. (AP video/Laura Bargfeld, Shelby ...