Why is it that we spend time wiping our bottoms after defication, so that we don't leave skids in our pants, but dogs just go and poo outside and don't bother wiping, then laze around their owners houses like they own the place and not leave skids everywhere? How does this work, are their anuses different in design (nb this applies to cats aswell, etc.)
before you make any wild accusations as a dog owner you cant help but watch sometimes. it appears to me that the dogs anus unfurls slightly before defacation. after doing the doo, the dogs sphincter rolls back up and in, taking all trace of skids with it. i suppose its like a foreskin really.