Your general point is valid. But you say “no non-primate species”, and I know of some non-primate species that can do this task. Namely, cetaceans, corvids, and octopus. Slight nitpick, as these are all very smart animals.
Your general point is valid. But you say “no non-primate species”, and I know of some non-primate species that can do this task. Namely, cetaceans, corvids, and octopus. Slight nitpick, as these are all very smart animals.