Today's EFD is about speech. As discussed previously, speech and language are unique to humans alone. We as a species have a "prewired" brain for learning and conveying abstract ideas through the physical body. Humans can produce a wide range of sounds. In fact, it is such an advanced capability that few animals can produce any sounds remotely similar to those of humans. Due to the human larynx being rather low in the neck, a long air column lies above the vocal chords. This feature is a necessity to vocalizing vowel sounds. Apes lack this distinguishing characteristic, and consequently, they are not capable of producing vowel sounds. In addition, the back of the human tongue extends deep into the back of the neck, and it can modulate airflow to produce consonant sounds. Apes have flat horizontal tongues that are incapable of making consonant sounds. Even if a species of monkey could evolve the physical requirements needed for speech, it would be in vain without a "prewired" brain for learning language skills. Speech is undeniably and uniquely human, and just as with language, could not have evolved.
~Tribal~
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