Dogs are certainly better at looking intelligent. I think dogs, being a more social animal, are more eager to please, and so are willing to be trained.

Cats can vary wildly. One of my cats seems dumb as a box of rocks and haven't even grasped the idea of object permanence. If she's tracking a laser, and I move it around a corner, she can't figure out where it went. She goes from intense staring and tracking to standing up and looking around, confused. When I bring the laser back around the corner, she's instantly back to squatting and tracking it.

> Cats can vary wildly. One of my cats seems dumb as a box of rocks and haven't even grasped the idea of object permanence

Similarly I've seen cats have one of two reactions to a mirror: ignoring it entirely or actually using it by e.g. looking me in the eyes and meowing at me through it. While I've not witnessed it personally on the internet there's also tons of videos of cats freaking out and trying to fight the other cat in the mirror.

This supports the idea that the gamut of intelligence in cats is quite wide.

Our dog remembers the location of toys at the park over long periods of time, though being able to sniff them out probably helps. He also expresses genuine surprise and suspicion when he sees novel objects (e.g. the large Christmas tree that was put up in the park, a horse and rider), because he knows they're not usually there. He doesn't like fat people, which is embarrassing, but I also knew a dog as a teenager that freaked out anytime it saw someone who wasn't Asian. Just given the amount of back and forth communication that happens between most owners and their dogs, they're very clever. Cats are some of the best hunters in the animal kingdom, but I've never felt that they're there in the way that dogs are.

I've known many dogs that fail this test, too.