Coprophagia (sometimes called coprophagy, or poop-eating) is a pretty disgusting habit that fortunately only some dogs indulge in. It seems to be "one of those things" as far as dogs go: a behavior that defies logic and scientific study, and mystifies dog trainers and veterinarians around the world.
Many, if not most, dogs will eat the feces of other animals (particularly other dogs, cats, sheep, and horses) with gusto whenever the opportunity presents itself. Itís a very common behavior in dogs, but not particularly well understood. The simple truth is that nobody really knows why some dogs will make a beeline for a pile of poop that's lying on the grass. It's natural for dogs to want to sniff the poop - almost all dogs will do this, since the depositor's anal glands have left a kind of Post-It note there for other dogs to "read" - and it's just as natural (seemingly) for some dogs to want to consume these little signposts. It's just that we don't really know why they do it.
Actually eating the feces seems to be a matter of personal preference, from dog to dog: some dogs derive great satisfaction from consuming poop, whereas other dogs appear to be simply more fastidious by nature. There are several popular theories about the causes of this strange habit: no advertising on the forum
***Edited By: pyrmom on 6/1/2009 4:46:56 AM*** Reason: advertising