Living Arthropod (IMAGE)

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Living Arthropod

Caption

A living arthropod (centipede Cormocephalus) crawls over its 515-million-year-old relative that lived during the Cambrian explosion (trilobite Estaingia). A study of arthropods reveals that morphology and genes evolved five times faster during evolution's "big bang" compared to all subsequent periods: Fast, but still compatible with Darwin's theory. Both the centipede and trilobite are found on what is now Kangaroo Island, Australia.

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Michael Lee.

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