In we try to make careful use of fossil evidence that may not be beautifully complete but preserves valuable evidence about extinct species. DH4 is one of my favorite fossils, revealing the interaction of skull size and musculature in

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When I turned to I knew that teeth made up a disproportionate amount of the record, but I couldn't imagine I would ever be very interested. What fascinates me now are the clues they give about an individual life course.

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