Subject: If man evolved from an ape-like species how do you explain Lucy?

A few years ago I read an article that explained the dicovery of
a skeleton they named Lucy. Scientists explained that she was 
~13million yrs old. Yet the spinal cord was strait not arched 
like an ape's. I have also heard of other similar dicoveries but
none show ape like features. The only thing I have read is that 
their nasal cavity was bigger than ours today. Please explain or 
if this question has already been addressed point me in the right
direction.  Thank You.

Re: If man evolved from an ape-like species how do you explain Lucy?