We also see machines in living systems. That’s not to say that cells or living systems on the whole are “machines,” but they do contain machines.
I hasten to add that the course is being taught by my wife, Kristin Marais! The class will be a full two-semester course.
We regard Kojonen’s model as nuanced, erudite, and fair-minded. It is a model of fine scholarship and deserves serious attention.
The article cites new literature that has appeared since I published my own review nine years ago.
The fossil record shows a break between the australopithecines, supposedly directly ancestral to our genus, and the first humanlike members of the genus.