Your comments throughout this thread are very interesting. Okay, you and your accomplished husband and college aged daughter took lots of biology courses, and amazingly, what you define as “macroevolution” was barely touched upon.
What’s interesting is that a) you seem blithely unaware of how you certainly must have moved the goal posts wrt your arbitrary distinction between micro and macro.
Of COURSE the courses/texts spent the most time on what you call “micro.” That’s how evolution works! Teeny tiny changes in the alleles over (usually) vast amounts of time that would pretty much never look “evolutionary” or even revolutionary at the time of the chages!
It’s the creationist in you that still expects to see that iguana turn into a bird in one generation. Go back to your texts and class notes that surely have more than 20 minutes worth of the reptilia to avian evolution. you picked a great example with plenty of fossil and DNA evidence to support the facts.
To me, this is sort of a major issue. You admit to tiny changes (ie, salt-water swimming iguanas) but refuse to accept it can go beyond that. Using your example, One iguana population adapts to salt water. Many generations pass. Salt water requires less bouyancy and certain adaptations result in speedier swimmers but less bouyant ones. Many generations pass. Blood proteins change and diets change. Many generations pass. Teeth change in response to the diet change, jaws change as a result and their ears change with the jaws. On and on.
Now the two populations are too genetically distinct to mate successfully. Voila, 2 species. Oh I know... they’re still iguanas. True. Just wait a million years as that salt water lagoon dries up more and more each dry season.
but tha’ts where your brain stops working, unfortunately. That’s when God steps in and either kills off yoru salty population or... I don’t know. He makes them evolve over several million years to adapt?
Hmm.
You are putting words in my mouth. I did not say this. I can not defend a strawman argument of your creation.
If your follow the content of my thread my **main** point is that macro-evolution is of little importance to working scientists and health professionals. Few of us spend more than a lecture or two on the topic.
Solution: Get government out of the k-12 business.