Suddenly, on some occasion of interest (at the approach of a wild beast, shall we say?), he first, they following him, utter a cry which resounds through the forest. The cry is almost or quite involuntary, and may be an imitation of the roar of the animal. Thus far we have not speech, but only the inarticulate expression of feeling or emotion in no respect differing from the cries of animals; for they too call to one another and are answered. But now suppose that some one at a distance not only hears the sound, but apprehends the meaning: or we may imagine that the cry is repeated to a member
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