Stand on the rocky shoreline near the foot of the Pointe Aux Barques lighthouse, at the tip of the thumb of Lower Michigan, and look north across the blue expanse of Lake Huron. You will not see any caribou. But they were there, as were the humans that scientists believe hunted them nearly 10,000 years ago. Now, thanks to innovative technology, determination, and luck, archaeologists are bringing this lost human history to the surface, and piecing together the mystery of a hunter-gatherer society unlike any other in the region. The…