Kiva (mostly human) and Ari (mostly feline).

The two are not nearly as far apart in intelligence as they might seem from appearance. If anything, Ari is the smarter of the two; contemplative and preferring a well-thought-out plan to impulsive action he often seems grumpy or short tempered, but much of this is fear that he'll let his guard down and allow Kiva to come to harm. Her carefree, spur of the moment attitude and tendency to leap before she looks do nothing to set him at ease, but he remains a stalwart friend and protector.

Here we find them tracking lunch - or perhaps avoiding being tracked as lunch. They always seem to be chasing something, or running away from something else xD