Well I think intelligence is relative based on how you look at it.
Oz being a Collie, bred to work with people is in the easy to
train category. Picking up commands quickly, because he's so
focused on pleasing me. I would label him Book Smart.

My Terriers on the other hand were bred to be independent,
needing the ability to problem solve on their own, without looking
to their master to give a command. That makes them harder to
train, so some would label them as not as intelligent. I label
them as Street Smart. You can see the wheels turning in their
heads as they try to problem solve to benefit themselves,
not necessarily please you.

I bought one of those treat balls. Oz figured out really fast
to push it around to get the treats. Murph on the other hand,
lets Oz do all the work, but follows behind him picking up the
treats that trail behind Oz, because he's so busy pushing the
ball around. So who's the smarter?

Par...