Reply #12: Want to see evolution in action? [View All]

[colorado_ufo]

Lots and lots of modern folk are born without room for the full set of 32 teeth, hence the most common form of oral surgery: removal of wisdom teeth (third molars). Our diets have changed, and our jaws have selectively become shorter/smaller.

More? You want more? Well, a considerable number of people are born without an appendix. And of course, the appendix probably used to be a cecum. Girls are reaching puberty at an ever-earlier age. And women are having babies later and later in life.

As we develop longer life spans and more medical and health advances, and as climate/activity/workload/and more change, the human physiology and mental capacity that best cope with such changes will be favored, and these select people will be favored with success in life, and success favors the best choice of mates. And so on.

We don't have to look as far back as the dinos!