I was surprised to see absolutely no ants running around just prior to the pour. I realize that this was done at night, which would have had activity at a minimum, but I think I saw one lonely ant walk across the mound during the video, which seems odd to me. If they were fire ants, as already mentioned, they should have been everywhere. Do you suppose they eradicated the ants somehow prior to setting up for the pour? Fire ants are not easy to get rid of, so any thoughts on how they might have gotten rid of them in the first place?
Oh, and don't let the people at PETA find out that a mass execution of ants occurred....