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Ancient fossils dating back more than a half a billion years were discovered in Canada’s Burgess Shale. They were analyzed by a scientist who came up with a fascinating way to study the fossils in even further detail which provided more valuable information regarding the evolution of life on our planet. Dr. Paul Johnston, who... Read more »

When a Calgary scientist examining fossils in Canada's Burgess Shale region noticed that previous researchers had only just scratched the surface of the evolutionary record, he decided acid was a better bet.