Uh, that would seem unlikely, give the wavelength of ultrasonic sound
in water vs. our vision system operates hard at the physical threshold
for optical instruments. The resolution of long-range sonar whales
should be pretty lousy, though far ranging.
> 'see' through many of the objects they bounce sounds off. This give them a
> unique kind of 3-d hologaphic perception of the world around them.
Inasmuch would this differ from you internal scene representation? You
have textures, depthcueing and stereo to construct a 3d description.
The interesting part of sonar vision is that you can tell materials
with different sound propagation velocities apart, e.g. a plastic and
a steel ball. Also, you could theoretically share a mental image,
though there is no evidence that the cetaceans really do that.
> Paul
>
ciao,
'gene
P.S. Is the extropy listserv malfunctioning, or is this just me?