Great work once again. I find prehistoric evolution to be a fascinating topic and have been to several sites where large numbers of fossils are found. It's simply amazing how we have this record of a world that was unlike anything we see today. It seems to me that periods such as the Cambrian Explosion were times when evolution went through highly experimental stages. Understanding why a particular species survived, whilst others died is essential for the conservation efforts in our time.
RE: Book Review Double Header: Wonderful Life and Emerald Planet