Evolution Revolution: Kangaroo = no Ark?

I am having trouble figuring out where you are going with this. In college, you learn the basic data, and how it was acquired; in graduate school, you use the techniques to acquire more data, and also develop new techniques. I have a friend who subscribes to Science (I don't -- it's a bit pricey), and marvel at the new dodges that people come up with to extract data from the world. Everybody has heard of carbon dating, but how about dating using non-radioactive isotopes? It's being done.