Scientists take care of the egg of a bird called a chaffinch. After it hatches, the scientists raise the chaffinch in a lab so it never sees or hears any other chaffinches. One day the scientists hear the chaffinch singing. They record its song, which they compare to the songs of wild chaffinches. The scientists can tell that the song of their chaffinch is about the same length as the wild song, but is missing the characteristic sound pattern that all wild chaffinches include in their songs. The scientists repeat this experiment several times and get the same result each time. -Explain how these observations suggest that a wild chaffinch's song is both a learned and inherited behavior. ​