| http://www.w3.org/ns/prov#value | - The researchers think that the tail feather was ornamental and likely evolved for courtship and other social interactions, not for aerodynamics.Most aspects of early dinosaur feathering continue to be interpreted as fundamentally aerodynamic, optimized for some aspect of aerial locomotion, said Julia Clarke, one of the paper's co-authors and an associate professor of paleontology at The Universi
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