Re: How would Tyrannosaurus approach a Triceratops?

[Danvarner@aol.com]

In a message dated 8/20/2005 9:20:09 PM Eastern  Standard Time, 
aidan_karley@yahoo.co.uk writes:

<< I see the  reasoning, but I've just been doing some poking around
with my specs and  eyeballs to work out that the only experimental
animal I have available  (H.sap) has about a 90deg field of view per
eyeball, so with an optic axis  oriented at 45deg to the body/ skull
axis, the actual fields of view of each  eye would barely overlap.
Obviously subject to assumptions about the angular  width of field of
view in T.rex, and the amount of yaw of their eyes in their  sockets.
would the scleral plates constrain this? they're anchors for  eye-moving
muscles, aren't they? >>

Below is a url  to a dorsal view of the skull of a Bald Eagle (Haliaeetus 
leucocephalus), a  large predatory bird capable of incredibly complex aerial 
maneuvers in both  hunting and social modes.

http://www.ummz.lsa.umich.edu/birds/images/eagle1.jpg

DV