Add Yahoo as a preferred source to see more of our stories on Google. In this undated photo shows Brian the rattlesnake, which is used to train dogs to avoid dangerous vipers, in Tucson, Ariz. (J.J.

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our ...

TUCSON, Ariz. – Ripley, a medium-sized dog with a strong prey drive, curiously approached Brian, a large western diamondback rattlesnake, until she got a quick zap on the neck meant to simulate a ...

In this undated photo shows Brian the rattlesnake, which is used to train dogs to avoid dangerous vipers, in Tucson, Ariz. (J.J. Belcher via AP) TUCSON, Ariz. (AP) — Ripley, a medium-sized dog with a ...

TUCSON, Ariz. (AP) — Ripley, a medium-sized dog with a strong prey drive, curiously approached Brian, a large western diamondback rattlesnake, until she got a quick zap on the neck meant to simulate a ...