The human mouth has a sub-optimal design when it comes to the tasks of eating and breathing. In reality, the human mouth structure is instead optimized for speech and language. This is well-known among legitimate scientists, but of course the pseudoscience frauds ignore this fact. The frauds ignore the impact of language and technology (stone tool use and cooking) on the evolution of human oral structures. As usual, they put themselves in an IL-logical corner by ignoring evidence, and misrepresenting current info and/or relying on outdated old info. The exciting article below discusses some of the significant evolutionary changes required to support language in humans. And language is an element of human culture. Hence this is solid, undeniable* evidence of a culture-evolution linkage. *undeniable to a rational person. The pseudoscience frauds are not rational, so may deny it anyway. Journal title: Evolutionary Anthropology: Issues, News, and Reviews Citation details: Volume 13, Issue 5 , Pages 181 - 197 Article title: Increased breathing control: Another factor in the evolution of human language Article authors: Ann Maclarnon, Gwen Hewitt http://www3.interscience.wiley.com/cgi-bin/abstract/109697793/ABSTRACT Abstract Investigation into the evolution of human language has involved evidence of many different kinds and approaches from many different disciplines. For full modern language, humans must have evolved a range of physical abilities for the production of our complex speech sounds, as well as sophisticated cognitive abilities. Human speech involves free-flowing, intricately varied, rapid sound sequences suitable for the fast transfer of complex, highly flexible communication. Some aspects of human speech, such as our ability to manipulate the vocal tract to produce a wide range of different types of sounds that form vowels and consonants, have attracted considerable attention from those interested in the evolution of language.[1][2] However, one very important contributory skill, the human ability to attain very fine control of breathing during speech, has been neglected. Here we present evidence of the importance of breathing control to human speech, as well as evidence that our capabilities greatly exceed those of nonhuman primates. Human speech breathing demands fine neurological control of the respiratory muscles, integrated with cognitive processes and other factors. Evidence from comparison of the vertebral canals of fossil hominids and those of extant primates suggests that a major increase in thoracic innervation evolved in later hominid evolution, providing enhanced breathing control. If that is so, then earlier hominids would have had quite restricted speech patterns, whereas more recent hominids, with human-like breath control abilities, would have been capable of faster, more varied speech sequences. Tom Billings