I need some help with this. I have no idea if this is normal or not. My 1 1/2 month old foal has strange pink lines on his hooves. They seem to have come out of nowhere, I see him every day and just noticed them this morning (however they could have been there a day or two before but been concealed by mud). It looks rather odd to me. This is my first experience with a foal so I don't know if it is something that normally occurs. Thanks for any input! He is very healthy and active, nursing consistently and growing like a weed.