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ignoring evidence, and misrepresenting current info and/or relying on outdated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