Scientists have found evidence of all of the following EXCEPT:
A) dolphins have a grammar that permits productivity.
B) chimpanzees use deceptive tactics when competing for food.
C) chimpanzees console other chimps who are in distress.
D) dolphins pass the "mirror test" for self-recognition.

Question

Quizplus · Accepted Answer

While dolphins are known for their complex communication, there is no conclusive evidence that they have a grammar that permits productivity, which is the ability to create an infinite number of sentences from a finite set of elements.

Scientists Have Found Evidence of All of the Following EXCEPT