I’ve studied this a bit and quickly came to the conclusion these creatures are animals and have nothing to do with human “evolution”. In fact they have produced little in the way of evolution for evolution beyond minor tweaking.
Evolution is all about "minor tweaking" -- randomly turn on a gene here, turn off one there, mutate an allele, minor adaptations, generation after generation, over millions of generations can accumulate into major changes in forms & functions.
That's evolution in a nutshell.