I wasn't sure where this thread would go so i figured this was a safe bet. I have seen sketches and drawing and whatnot of mers with tails clearly longer then proportionate legs would be. So in a physical sense in the real world, would tails like that work the same way? I think they are gorgeous and whispy but I can't imaging how you'd be able to control the fin if it was so far away from your feet...

These are a few designs I found that got me thinking (images found on google)
http://jjulie98.deviantart.com/art/L...maid-356273725
http://hauket.deviantart.com/art/Sha...maid-434731204