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Re: Longer Tails in Birds: Functional "Re"Evolution



----- Original Message -----
From: "Williams, Tim" <TiJaWi@agron.iastate.edu>
Sent: Friday, February 15, 2002 12:57 AM


> [gigantic snip]
> in cursorial flightless birds, the femur no longer takes part in a true
> locomotory function.

According to PDW it does in ostriches when they are running too fast to
worry about equilibrium.