Fossils are great; the more the better. Experience from spectacular discoveries assures us that no surprises will change Charles Darwin’s own cause for doubt.
The most celebrated Precambrian sponge may not be a sponge at all. Watch Darwinians try to coax it into spongehood.
Scientists debate whether ctenophores are the earliest animals to appear in the Cambrian explosion. If so, they arrived with multiple tissues, a nervous system, and a digestive system.