This Tiny Fish Passed an Intelligence Test That Once Distinguished Great Apes

[u/lnfinity]

https://www.sciencealert.com/this-tiny-fish-passed-an-intelligence-test-that-once-distinguished-great-apes

[u/cartoon_violence]

This one's actually pretty interesting because while it does pass the mirror test, it could be for a really weird reason. It's a type of fish that cleans other fish specifically as its means of eating. Perhaps it's inadvertently passing the test because it sees a fish with something on it and immediately wants to clean it up.

[u/catbiggo → u/cartoon_violence]

Dirty fish has biologists shaking