Re: Bird (Dinosaur?) vision

[Ken Carpenter <KCarpenter@dmns.org>]

sleep?

>>> <Lawrence_Dunn@smbcgroup.com> 22/Jul/04 >>>




Is it true that some birds can see only movement -- that they cannot "see"
something that is not moving?  I've recently had this suggested to me, but
I'm not sure I see the sense of it.  Is there such a condition in nature?
If so, what is it called?



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