Sometimes, dogs do strange things. Beyond rolling in mud puddles or biting themselves, your pet might drink from toilets or lick its butt. In other cases, it may eat its own poop or, worse, the poop ...

So many of you enjoyed my column about pee-mail a couple of weeks ago that I find it fitting to write a follow-up about, well, poop. Let’s start with PooPrints, the leading dog poop DNA testing ...