And the new fossil is true to form, said Rick Potts of the Smithsonian Institution's National Museum of Natural History. If all traits were evolving independently, then it's not linear. It's mixing and matching, and that's a really interesting idea. This problem has deepened as the pace of discovery has quickened in recent years. Adding a second genus is likely to confuse the landscape even further, said George Washington University paleoanthropologist Daniel Lieberman, who wrote a commentary to accompany the Nature report.
More confusion is good.
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