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Re: Penguins And Rexes

I don't know how unusual that is.

My budgies use their beaks for third limbs.   Especially for climbing; and
in other situations where one could use four legs.

I've not seen any other birds using their beaks for limbs, but maybe I've
not watched them enough!

Dora Smith
Austin, Texas
----- Original Message -----
From: "Richard W. Travsky" <rtravsky@uwyo.edu>
To: <dinosaur@usc.edu>
Sent: Thursday, August 11, 2005 10:49 PM
Subject: Penguins And Rexes

> Saw "March of the Penguins" earlier this week, and noted something I
> hadn't before about penguins (not unexpected when they're on screen
> in front of you for almost 2 hours).
> They had two ways of getting up when traveling on their bellies.
> One, obviously, pushing up on their flipper arms.
> The other was pushing up with their beaks, with no arm usage.
> So, question - In the past there's been mention in the list of how
> rexes got up, what with those tiny arms and all. I don't recall if
> anyone proposed pushing up with their jaws. That would seem like
> a lot of weight to raise. Do their jaws look sturdy enough to
> do that? Do their jaws show signs of being used in this fashion?