The secret revealed - why dogs roll in poop?

The Urbandoggs and friends

Poop is abhorrent to humans. We don’t even want to step on these smelly things nor would we want to get a whiff of the gagging smell. This would make one wonder at the dog’s perplexing habit of not only rolling in feces but in eating these excrements as well.

Dogs are supposed to have ultra-sensitive scenting ability that is much more sensitive than what we humans have. If this is so then these animals should hate feces more than we do. Feces to us humans are horrible but to our four legged friends finding one is similar to finding a treasure. To us, poop is gross but to a dog it is yummy. Dogs are affectionate and loyal companions. But they do have some very obnoxious habits that humans just don't understand.

I think this info came from DogTV but I cannot find the link- sorry!