Last summer I leased a mare who had lacing along her back (or the giraffe I think some people call it) and it seemed weird to me. The owner says it's just her genetics but the farrier wasn't so sure and he thought it may have been from a previous injury or something. She did have some back problems that the chiropractor had to "fix" (I'm not sure they were ever really fixed). My point in all this is: what do you guys know about this? I only want to know because I'm curious about it and it seemed a little odd to me. What do you think?