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Why do I, or any other human, get sore and cracked heels?
I understand it's less common in men than women – presumably this is down to footwear choices?
At this point in time they were simply a useful tool for correlating rock formations.By the 1830's Adam Sedgwick and Roderick Murchison established a correlation between the various types of fossils and the rock formations in the British Isles.It was found that certain fossils, now referred to as index fossils, were restricted to a narrow zone of strata.The cream product I use to cure it works very well, but its active ingredient appears to be urea.How does this react with my skin to cure the problem?
It's just one of the tricks that have been used to make the work a little more precise. I believe he has confused the use of index fossils with evolution.