XI. Progressive Development Through The Different Cycles Of Culture

Animals were predisposed for this, but they degenerated. Consequently they could not transform themselves into beings endowed with speech, for speech is connected with a larynx located in a in a body having an upright position. We may gather this through a primitive fact. Many dogs are undoubtedly cleverer than parrots, yet a parrot learns more, because its larynx is in a more vertical position. Parrots and starlings learn to speak a little, because their larynx is located vertically.