Burgess Shale video

I'm studying the Burgess Shale in Scientific Inquiry and this video shows an animation of what the Burgess Shale might have looked like and what the inhabitants of the Shale might have looked like as well. The Burgess Shale was in what we know today as Canada, but there were fossils found there that dramatically disprove many previous ideas of evolution that we know today. The reason is because these fossils are imprints of the soft parts of these animals.