An intelligent design advocate is publishing a book this month that uses the Cambrian Explosion as evidence against Darwinism and for I.D. Two major evolutionary paleontologists have also published a book about the issue.
Here are accounts of three very different animals whose behaviors have baffled scientists till now. Scientists are beginning to get at least partial answers for scientific mysteries by carefully observing and testing to see how things work.
Darlings of the Cambrian Explosion, trilobites had spotted markings and sophisticated eyes. Some have been exceptionally well preserved as fossils, down to the level of individual cells.