Yeah, like I said, it's been a huge breath of fresh air to just go through the basics of chemistry, physics, biology, etc with RS4K so we've really enjoyed it, plus my kids love the experiments. Half a dozen of my kids' classmates are pulling out of our old public school because apparently they got a science curriculum that's even worse and it's about training kids how to argue against politicians about hot scientific topics in current events. It's just gotten really political. I think a lot of us just want our kids to learn the science basics! Not to mention, we are actually not 100% homeschooling, but homeschooling through a charter, so we still have CA requirements to fulfill. Our CA history text is going through the ice age and homo halibus/erectus/sapiens/etc progressions as well. So I felt like there was enough of that area of evolution already to go around. No need to keep shoving it into my kids' faces--plus they're not super interested in that--they want things they can experiment with and prove now. Evolution of viruses and mutations would be much more applicable and interesting, although, I would want them to understand some cellular level basics first--which is what we're hoping to work up on now.