In article 2004020507303924084%zobeid@techiecom, Tony Belding wrote:
On 2004-02-02 23:57:38 -0600, (Paul Morris) said:

there is visible a pebble or small stone that has a
very unusual shape: it appears to have two "stalks"
that protrude upwards (rather like the stalks
or antennae of a snail).

I noticed that too, yesterday. It is visible more clearly in the
full-resolution TIFF image available from this page:

http://photojournal.jpl.nasa.gov/catalog/PIA05199

I don't see how that could be a rock, it really doesn't look like one at
all. I expect it's either some piece of debris that came off the
spacecraft, or else it could be what it looks like: a little critter
wandering across the sand, waving its antennae at us.
Ofcourse... Then again similar stones I've seen here were
actually stones.