Most modern groups of animals appeared between 540 and 520 million years ago. Now, scientists have learned a little bit more about what is called the "Cambrian explosion." They've pieced out the rates of evolution during that time and with the new findings have resolved "Darwin's dilemma." When the evolutionary explosion occurred during this time, our planet was changed forever. The incident was arguably one of the most important evolutionary events after the origin of life. Yet these seemingly impossibly fast rates of evolution baffled researchers and have been exploited by opponents of evolution. Unfortunately, because the ancient fossil record is incomplete, there's been little in the way of hard evidence to show off how evolution's Big Bang took place. In order to learn a bit more about the Cambrian explosion, the researchers quantified the anatomical and genetic differences between living animals. More specifically, they focused on arthropods, which include insects, crustaceans, arachnids and their relatives. Read more http://www.scienceworldreport.com/a...evolutions-big-bang-agrees-darwins-theory.htm