Last night's talk on the Cambrian explosion went really well - managed to nicely weave a narrative of fossils, genetic analysis, and evo-devo over the two hours (questions were spread throughout the talk). Over at Pharyngula, PZ has linked to some nice scanning electron micrographs of Cambrian arthropods. Check 'em out, they're quite cool.
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Considering the fossils of the Cambrian, the oldest fossil-bearing rocks known during his time, Charles Darwin wrote the following in the 6th edition of On the Origin of Species;
Joe Carter and PZ Myers have been having a little exchange over some claims in the new paper by Stephen Meyer of the Discovery Institute, a paper that has prompted quite a bit of discussion.
Are There Disagreements Between the Fossil Record and Molecular Data?
The Cambrian "explosion," the enigmatic phenom