Subject: how could the species of lizards could have evoluted into snakes?

       i just want to know the answer to this particular question, because if 
snakes ever become extinct i want to be the one to re-populate their species. 
reptiles interest me a lot. i need information on the process of that kind of 
evolution. i heard, around campus, that when the lizard goes into the water, it 
loses its legs. i thought that, that was only logical if the lizard swayed in 
the water, therefore causing it to not need its legs any longer. well, thanks 
for your time. 

Re: how could the species of lizards could have evoluted into snakes?