Humans can be taught to do a fair imitation of the complex bee communication system. That is not of the slightest interest to bee scientists, who are rational, and understand something about science: they are interested in the nature of bees, and it is of no interest if some other organism can be trained to partially mimic some superficial aspects of the waggle dance. And one could of course not get a grant to teach grad students to behave like imperfect bees. When we turn to the study of humans, for some reason irrationality commonly prevails -- possibly a reflection of old-fashioned dualism -- and it is considered significant that apes (or birds, which tend to do much better) can be trained to mimic some superficial aspects of human language. But the same rational criteria should hold as in the case of bees and graduate students. Possibly training graduate students to mimic the waggle dance could teach us something about human capacity, though it's unlikely. Similarly, it's possible that training apes to do things with signs can teach us something about the cognitive capacities of apes. That's the way the matter is approached by serious scientists, like Anne and David Premack. Others prefer to fool themselves.