[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Sifaka and Chukar Behavior: Trees Down or Ground Up?
Dann Pigdon (firstname.lastname@example.org) wrote:
To me, this looks like a glider that used its legs to provide lift only,
leaving the forelimbs free to provide control (and perhaps occasional
thrust), with a bit of extra lift thrown into the bargain. I've assumed no
feathers attached to the humerus, and have the tarsal feathers extended
(according to HP Paul's idea of muscular control, which I also considered
This looks very plausible. I would add an "alular" fluff at the leading
edge of the first digit, though it may have only covered it and not form
an actual alula (which I suspect is more the case), and lengthen the head
and neck ... Sloan restored the head and neck way too short, and they
would have been at least as long as the trunk, together. Also, it seems
there most likely were humeral feathers, there's no real reason to assume
there weren't in the wing structure, as no evidence seems to contradict
Jaime A. Headden
Little steps are often the hardest to take. We are too used to making leaps
in the face of adversity, that a simple skip is so hard to do. We should all
learn to walk soft, walk small, see the world around us rather than zoom by it.
"Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.