There you go again, claiming to have calculated how many ‘generations’ a species need to evolve to another. How did you calculate this?
I haven’t calculated.
I’m simply saying, what’s the least possible number of generations necessary to see a new feature.
If we think this is hundreds of thousands of generations, say 100 to 200 thousand, but mammals have only been around for 1,000 generations, then there has not been enough time.