They have all started to open their eyes. They are also standing and taking a couple of wobbly steps. We removed the pig rails this morning to give them more room. The bigger of the two girls escaped last night trying to find more room. I found her just out side of the whelping box, apparently quite pleased to have found some space where no one smacked her in the face. They seem more content to stay in the whelping box now that they have the extra room. I am sure they will want to do more exploring once they have gotten a little better at using their legs.