How did we, as humans, come to dominate the earth? I fundamentally believe that the core reason our species is top dog, so to speak, is our ability to communicate complex thought processes with one another very efficiently. We are not the fastest species on earth; we are certainly not the strongest; and the pets we have in our homes generally have more acute senses than we do. Yet we have this ability, unique in nature, to speak. This has allowed us to master the art of cooperation and in turn, to exploit natural economies of scale. From an evolutionary standpoint, these complementary skills for communication — one a cognitive skill (language) and the other a motor skill (speech) — are a tour-de-force of coordinated systems. Speech evolution and the origin of language may not be something you think about everyday, but read on to understand why you are even more awesome than you realized.
