There is no publication in the scientific literature - in prestigious journals, specialty journals, or books - that describes how molecular evolution of any real, complex biochemical system either did occur or even might have occurred.
The muscles used to make a smile actually send a biochemical message to our nervous system that it is safe to relax the flight of freeze response.
The most consistent versions of materialism deny the reality of anything beyond matter - no soul, no spirit, no will, no mind. This is called reductionism: Humans are reduced to biochemical machines.
Man's destiny is to know, if only because societies with knowledge culturally dominate societies that lack it. Luddites and anti-intellectuals do not master the differential equations of thermodynamics or the biochemical cures of illness. They stay in thatched huts and die young.
Big news on CNN, a search has uncovered illegal biochemical agents, toxins and other dangerous substances. Not in Iraq, in Rush Limbaugh's medicine cabinet.
Genes are biochemical recipes written in a four-letter alphabet called DNA.