Cats can count to much more than two. If there are treats on a shelf and our older cat knocks them down, she'll remember how many hit the floor (from the sound)

Cats can count to much more than two. If there are treats on a shelf and our older cat knocks them down, she'll remember how many hit the floor (from the sound) and then not stop looking for them until she's found that many. I suspect being able to keep track of distinct objects is useful when hunting if multiple small prey animals disperse in order to confuse the predator.