[ndt]

"It just seems to me, and I am not an expert in the field, that there should be a huge quantity of examples of random mutations, viable or not, relative to what would have had to occur on the scales we are talking about."

The vast majority of mutations are not so extreme as to even be visible in living things much less in the fossil record. You seem to be expecting horns to appear on a rabbit.

[DonaldC]

Hey, if it's truly random, yes, I would expect to see some bizarre things. :) A naturally occurring jack-a-lope would be sight! hehehe

[Elsie]

You seem to be expecting horns to appear on a rabbit.

http://ww2.lafayette.edu/~hollidac/jackalope.html