Add Yahoo as a preferred source to see more of our stories on Google. At first glance, your dog’s collar may look like a benign piece of equipment that encircles the neck. What harm can it really do?

One of the most serious risks of pet collars is the danger of choking or accidental strangulation. Pets are naturally curious and active; they jump, climb, squeeze into small spaces, and play roughly.

At first glance, your dog’s collar may look like a benign piece of equipment that encircles the neck. What harm can it really do? After all, a collar—plus a leash—is one of the first accessories that ...