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Re: Even more on giant birds and dino phys (joy!)

Oscar Quill asked:

"Would the lack of a tail (in birds) be the primary
reason for this [bent-knee posture]?"

Apparently so. Several articles by Stephen Gatesy and others suggest that as the tail was lost in birdy ancestors, the femur became more horizontal and the knees flexed in order to reposition the center of gravity over the feet.

Matt Bonnan
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