The cleaner wrasse has long been known to be extremely intelligent. The fact that scientists are questioning the mirror test because of this fish is more tellin

The cleaner wrasse has long been known to be extremely intelligent. The fact that scientists are questioning the mirror test because of this fish is more telling of their credibility than the test's. The cleaner wrasse even engages in complex economic behavior: http://freakonomics.com/podcast/animal-economics/ http://freakonomics.com/podcast/animal-economics/