[Hoof Hearted]

I would think the dog is trained to pick up on the little precursors that precede the seizures. Behavior tics, a smell from the person's body...some sort of 'trigger' that the dog is able to pick up with their keen senses and is service-trained to respond to, though some pets are able to pick it up and warn their caretaker of the imminent episode without training...I still think it is their keen senses, great powers of observation and attentiveness at work.

I do believe there is a 6th sense, in both people and animals, but that it is harder to detect and prove. I watch the Animal Miracle shows and see evidence of heroism and unnatural sensing of things...most can be explained, but many cannot, and those are probably the ones that fall into the "sixth sense" catagory.

To qualify as a sixth sense perception, I feel it needs to be of a nature of there was no way the animal could know something by using their usual senses of sight, hearing, touch, taste and smell. IMO, most things can be explained with those 5 senses...it is hard to eliminate all of those factors to focus on a 6th sense being the cause.