Isn't the question really "which animal has a tendency to exhibit more human-like behavior: cats or dogs?" We measure intelligence to human standards, and apply them to animals as if they have the same standards. Perhaps in order to measure intelligence, we survey what animal has the best survival skills (people ... and cockroaches), or which animals can best manipulate their environment to fit their needs (humans ... and termites).
I think the better question is, "Which animal gives a bigger shit about this dumb string test?" Dogs, obviously.
I think the better question is, "Which animal gives a bigger shit about this dumb string test?" Dogs, obviously.