At least one of the changes—the positioning of the larynx deep in the throat—seems bizarre. Having a larynx low in the throat provides the tongue with enough room to move and produce a large number of vowel sounds, but any food and drink we swallow has to pass over the trachea: choking to death becomes a distinct possibility. The benefits are great, but so are the costs. If the tape of life were replayed, perhaps humans wouldn’t develop language.
Wow
