Re: T. rex vision

[FEUKAC@PLU.edu]

On Sun, 26 Feb 1995 Flyinggoat@aol.com wrote:

> Not because whatever hunts it only senses motion.  I beleive this is a
> reptile-amphibian trait.
        > applicable to other reptiles.  My brother has  been bitten by turtles 
and  salamanders in the same situation.  Yes, I know salamanders are  
amphibians).

When I was a young I used to take care of salamanders and toads. I 
remember numerous occassions being bitten by the salamander ( Spotted 
Salamander) but it was usually when it was kind of dark in the room.
In the area in which I grew up(Des Moines,IA) along the Des Moines River 
there were numerous swamps that formed every spring.In which huge 
Bullfrogs lived,anyway, I learned a trick of how to catch them during the 
day, First get a piece of red cloth and attach it to a hook. You then 
could 'fish' for the Bullfrogs as long as you kept it on the surface and 
MOVING.  
>    If BIRDS can tell shapes apart, but REPTILES cannot, DINOSAURS are still
> up for grabs on whether or not they could distinguish shapes apart from
> motion.  Do dinosaurs share the primitive characteristic of vision in
> reptiles, or the more sophisticated vision of birds?  How do we know?

True, how do we know? kindof off the real question but they used a frog 
to fill in the missing DNA sequences. This could explain T-rex's vision 
in the movie. 

Aaron Feuk
Preparator,Dept. of Earth Sciences 
Pacific Lutheran University
Tacoma, Wash.,98447

> 
> Betty Cunningham(Flyinggoat@aol.com)
> (sclerotic rings are present in both birds and reptiles.  No help there)
>