Observational analysis reveals muscle attachments and pneumatic features in vertebrae from birds, implying clearer understanding of structures.
When I started working on sauropods, I thought their vertebrae were cool but they were loaded with weird structures that I didn't understand. Then I dissected my first ostrich neck and suddenly everything made sense: this was a muscle attachment, that was a pneumatic feature, this other thing was a ligament scar.
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Matt Wedel (2018) studied this question.
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