Are there creatures with semi evolved body parts present on the parent creature?

In reply to this comment of which I find confusing:
"people who accept evolution are the most ignorant, thick-skulled, bigoted morons to ever existthanks for proving that you are a bigot and a moron. you just love to call god a liar by accepting the evolution lie. we should see creatures with semi evolved body parts not present on the parent creature if evo was true. so far zerp evidence for evo have been found in nature."

From my understanding:
This is what he says we do not have any evidence of:
http://genetics.thetech.org/original_news/news124

the guy doesn't understand evolution
in that sense semi evolved body parts don't exist
generally; every step on the evolutionary ladder is useful. another copy of a gene or a slight alteration in the code can case another leg to appear, but if the mutation is bad, the individual will die (or something similar evolutionary speaking).
for example, humans can't evolve half wings with the goal of full wings; as evolution doesn't have a goal.
either arms have to change step by step into wings, each step being better than before in reproduction or new appendixes have to form step by step, and each step being useful and adding to better reproduction