I have a question. I am interested in livestock guardian dogs (LGD's) and I worked with them some on Greg Judy's farm during a 6 month internship there last year. I have also been in communication with Dean Anderson, a professor out west who has done research on containing livestock with GPS collars. One problem with GPS collars on livestock is cost. So my question is ... does anyone know of any research work with putting the GPS collars on the dogs instead, which in turn are trained to contain the livestock? The idea being then you would only need, say, 10 GPS devices (10 dogs) to contain a mixed flerd of perhaps as many as 500 or 1000 animals (cows, sheep, goats, chickens, hogs, etc). Wouldn't it be cool to have no need at all for interior, temporary fencing? Only perimeter fencing? Might be totally impractical. I don't know. But you don't know until you ask, right? I mean, 100 years ago, people probably would have laughed at the idea of containing 1000 cows with a single electric fence wire.