Thanks for all your well wishes for Mollie..
Because of multiple health conditions, we
are going to keep her comfortable and happy
as long as possible.

Here is my answer..

Base on my own experience, I really
believe that dogs do have innate sense
that something is wrong. I do
believe that dogs "grieve." I don't believe that
it is similar to human grief, but I do believe
there is sense of something wrong..

If you are interested, here is a recent editorial
that I wrote for CMAJ using my favorite
Rolling Stones song from Let it Bleed
http://www.cmaj.ca/cgi/content/full/174/5/643