an app
An elephant
Possibly it depends on whether or not the animal has been tested with stuff that could make it smarter.
If it's true that this app is smarter than your wife, I would say it's because the app has multiple sources to pull information from. Or maybe the app has a brain the size of North America. According to Brain Metrix, the average I.Q. is between 90 and 110.
Humans are animals. If you meant what is the smartest animal besides humans, it is the dolphin and the elephant.
The gorilla can win because of his mobility but likely the elephant unless the gorilla is smarter then the average gorilla. The elephant just needs a few pounces or 1 charge to win but the gorilla needs to be quick and persistent which is harder to do in a fight so my moneys on the elephant.
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smarter
The coyote is smarter
Dumber is the opposite of smarter.
An elephant is a large mammal with a long trunk, big ears, and tusks. They have a thick, gray skin and a distinctive body shape with a large, rounded back and four sturdy legs. Size varies between species with the African elephant being larger than the Asian elephant.
A raven seems to be smarter.
they get smarter bye watch the others