EVOLUTION EXPLAINED, MAYBE: The Scientific American has a little story that suggests that scientists may be figuring out how evolution, you know, actually works:

The fossil record contains numerous examples of dramatic evolutionary change in animals through time. Exactly how genetic alterations brought about these macroevolutionary changes, however, has proved difficult to ascertain. Now new research into the developmental biology of brine shrimp and fruit flies could throw light on the matter. According to a report published online today by the journal Nature, mutations in genes that guide embryonic development allowed insects to develop a radically different body plan from that of their crustacean-like ancestors some 400 million years ago.

Via Ian Pitchford. Of course, not everyone is convinced. Then there's this rebuttal.