As scientists contemplate a new fossil from China, a shrimp-like Cambrian animal with the oldest known cardiovascular system and a "thinking" brain, would you like a prediction?
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Unexpected complexity, what did you expect? Meanwhile, the transcriptome of another "simple organism," the sea anemone, was studied by researchers. Guess what?
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The sheer number of new papers attributing the rise of Cambrian animals to oxygen is weird. Could it be chance that these are all coming out months after the release of Darwin's Doubt?
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Convoluted phylogenetic trees, seemingly required by the genetic data, suggest that highly complex biological structures have been gained and lost many times in evolutionary history.
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